Q1
PHYSICS
Unit 11: Electrostatics
A parallel plate capacitor made of circular plates is being charged such that the surface charge density on its plates is increasing at a constant rate with time. The magnetic field arising due to displacement current is:
- A. non-zero everywhere with maximum at the imaginary cylindrical surface connecting peripheries of the plates
- B. zero between the plates and non-zero outside
- C. zero at all places
- D. constant between the plates and zero outside the plates
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Q1
PHYSICS
Unit 13: Magnetic Effects of Current and Magnetism
A parallel plate capacitor made of circular plates is being charged such that the surface charge density on its plates is increasing at a constant rate with time. The magnetic field arising due to displacement current is :
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2025 (1 set)
- A. non-zero everywhere with maximum at the imaginary cylindrical surface connecting peripheries of the plates
- B. zero between the plates and non-zero outside
- C. zero at all places
- D. constant between the plates and zero outside the plates
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Q2
PHYSICS
Unit 11: Electrostatics
An electric dipole with dipole moment $5 \times 10^{-6} \text{ Cm}$ is aligned with the direction of a uniform electric field of magnitude $4 \times 10^{5} \text{ N/C}$. The dipole is then rotated through an angle of $60^{\circ}$ with respect to the electric field. The change in the potential energy of the dipole is:
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2025 (5 sets)
- A. 1.2 J
- B. 1.5 J
- C. 0.8 J
- D. 1.0 J
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Q2
PHYSICS
Unit 11: Electrostatics
An electric dipole with dipole moment $5 \times 10^{-6}$ Cm is aligned with the direction of a uniform electric field of magnitude $4 \times 10^5$ N/C. The dipole is then rotated through an angle of 60° with respect to the electric field. The change in the potential energy of the dipole is :
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2025 (5 sets)
- A. 1.2 J
- B. 1.5 J
- C. 0.8 J
- D. 1.0 J
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Q3
PHYSICS
Unit 3: Laws of Motion
A ball of mass 0.5 kg is dropped from a height of 40 m. The ball hits the ground and rises to a height of 10 m. The impulse imparted to the ball during its collision with the ground is (Take $g = 9.8$ m/s$^2$):
- B. 84 NS
- C. 21 NS
- D. 7 NS
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Q4
PHYSICS
Unit 16: Optics
The intensity of transmitted light when a polaroid sheet, placed between two crossed polaroids at 22.5° from the polarization axis of one of the polaroid, is ($I_0$ is the intensity of polarised light after passing through the first polaroid):
↻ Repeated question — also appeared in
2025 (4 sets)
- A. I_0/8
- B. I_0/16
- C. I_0/2
- D. I_0/4
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Q5
PHYSICS
Unit 4: Work Energy and Power
The kinetic energies of two similar cars A and B are 100 J and 225 J respectively. On applying breaks, car A stops after 1000 m and car B stops after 1500 m. If $F_A$ and $F_B$ are the forces applied by the breaks on cars A and B, respectively, then the ratio $F_A/F_B$ is
↻ Repeated question — also appeared in
2025 (5 sets)
- A. 1/3
- B. 1/2
- C. 3/2
- D. 2/3
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Q5
PHYSICS
Unit 4: Work Energy and Power
The kinetic energies of two similar cars A and B are 100 J and 225 J respectively. On applying brakes, car A stops after 1000 m and car B stops after 1500 m. If $F_A$ and $F_B$ are the forces applied by the brakes on cars A and B, respectively, then the ratio $F_A/F_B$ is
↻ Repeated question — also appeared in
2025 (5 sets)
- A. 1/3
- B. 1/2
- C. 3/2
- D. 2/3
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Q6
PHYSICS
Unit 12: Current Electricity
The current passing through the battery in the given circuit is:
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2025 (4 sets)
- A. 2.5 A
- B. 1.5 A
- C. 2.0 A
- D. 0.5 A
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Q6
PHYSICS
Unit 12: Current Electricity
The current passing through the battery in the given circuit, is:
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2025 (4 sets)
- A. 2.5 A
- B. 1.5 A
- C. 2.0 A
- D. 0.5 A
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Q7
PHYSICS
Unit 8: Thermodynamics
Three identical heat conducting rods are connected in series as shown in the figure. The rods on the sides have thermal conductivity $2K$ while that in the middle has thermal conductivity $K$. The left end of the combination is maintained at temperature $3T$ and the right end at $T$. The rods are thermally insulated from outside. In steady state, temperature at the left junction is $T_1$ and that at the right junction is $T_2$. The ratio $T_1/T_2$ is
↻ Repeated question — also appeared in
2025 (5 sets)
- A. 5/3
- B. 5/4
- C. 3/2
- D. 4/3
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Q7
PHYSICS
Unit 8: Thermodynamics
Three identical heat conducting rods are connected in series as shown in the figure. The rods on the sides have thermal conductivity $2K$ while that in the middle has thermal conductivity $K$. The left end of the combination is maintained at temperature $3T$ and the right end at $T$. The rods are thermally insulated from outside. In steady state, temperature at the left junction is $T_1$ and that at the right junction is $T_2$. The ratio $T_1/T_2$ is
↻ Repeated question — also appeared in
2025 (5 sets)
- A. 5/3
- B. 5/4
- C. 3/2
- D. 4/3
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Q8
PHYSICS
Unit 10: Oscillations and Waves
In an oscillating spring mass system, a spring is connected to a box filled with sand. As the box oscillates, sand leaks slowly out of the box vertically so that the average frequency $\omega(t)$ and average amplitude $A(t)$ of the system change with time $t$. Which one of the following options schematically depicts these changes correctly?
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2025 (2 sets)
- A. Option 1
- B. Option 2
- C. Option 3
- D. Option 4
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Q9
PHYSICS
Unit 12: Current Electricity
AB is a part of an electrical circuit (see figure). The potential difference $V_A - V_B$, at the instant when current $i = 2$ A and is increasing at a rate of 1 amp/second is:
- A. 9 volt
- B. 10 volt
- C. 5 volt
- D. 6 volt
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Q10
PHYSICS
Unit 18: Atoms and Nuclei
A particle of mass $m$ is moving around the origin with a constant force $F$ pulling it towards the origin. If Bohr model is used to describe its motion, the radius $r$ of the $n^{\text{th}}$ orbit and the particle's speed $v$ in the orbit depend on $n$ as
↻ Repeated question — also appeared in
2025 (3 sets)
- A. $r \propto n^{2/3}; v \propto n^{1/3}$
- B. $r \propto n^{4/3}; v \propto n^{-1/3}$
- C. $r \propto n^{1/3}; v \propto n^{1/3}$
- D. $r \propto n^{1/3}; v \propto n^{2/3}$
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Q11
PHYSICS
Unit 2: Kinematics
In some appropriate units, time ($t$) and position ($x$) relation of a moving particle is given by $t = x^2 + x$. The acceleration of the particle is
↻ Repeated question — also appeared in
2025 (3 sets)
- A. $+ \frac{2}{(x+1)^3}$
- B. $+ \frac{2}{2x+1}$
- C. $- \frac{2}{(x+2)^3}$
- D. $- \frac{2}{(2x+1)^3}$
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Q12
PHYSICS
Unit 17: Dual Nature of Matter and Radiation
A model for quantized motion of an electron in a uniform magnetic field $B$ states that the flux passing through the orbit of the electron is $n(h/e)$ where $n$ is an integer, $h$ is Planck's constant and $e$ is the magnitude of electron's charge. According to the model, the magnetic moment of an electron in its lowest energy state will be ($m$ is the mass of the electron)
↻ Repeated question — also appeared in
2025 (1 set)
- A. $heB / \pi m$
- B. $heB / 2\pi m$
- C. $he / \pi m$
- D. $he / 2\pi m$
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Q16
PHYSICS
Unit 5: Rotational Motion
A uniform rod of mass 20 kg and length 5 m leans against a smooth vertical wall making an angle of 60° with it. The other end rests on a rough horizontal floor. The friction force that the floor exerts on the rod is (take $g = 10 \text{ m/s}^2$)
↻ Repeated question — also appeared in
2025 (3 sets)
- A. 200 N
- B. 200 \sqrt{3} N
- C. 100 N
- D. 100 \sqrt{3} N
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Q19
PHYSICS
Unit 8: Thermodynamics
A container has two chambers of volumes $V_1 = 2$ litres and $V_2 = 3$ litres separated by a partition made of a thermal insulator. The chambers contains $n_1 = 5$ and $n_2 = 4$ moles of ideal gas at pressures $p_1 = 1$ atm and $p_2 = 2$ atm, respectively. When the partition is removed, the mixture attains an equilibrium pressure of:
↻ Repeated question — also appeared in
2025 (1 set)
- A. 1.4 atm
- B. 1.8 atm
- C. 1.3 atm
- D. 1.6 atm
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Q20
PHYSICS
Unit 18: Atoms and Nuclei
De-Broglie wavelength of an electron orbiting in the $n = 2$ state of hydrogen atom is close to (Given Bohr radius = 0.052 nm)
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2025 (4 sets)
- A. 1.67 nm
- B. 2.67 nm
- C. 0.067 nm
- D. 0.67 nm
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Q21
PHYSICS
Unit 14: Electromagnetic Induction and Alternating Currents
To an ac power supply of 220 V at 50 Hz, a resistor of 20 $\Omega$, a capacitor of reactance 25 $\Omega$ and an inductor of reactance 45 $\Omega$ are connected in series. The corresponding current in the circuit and the phase angle between the current and the voltage is, respectively -
↻ Repeated question — also appeared in
2025 (4 sets)
- A. 15.6 A and 30°
- B. 15.6 A and 45°
- C. 7.8 A and 30°
- D. 7.8 A and 45°
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Q22
PHYSICS
Unit 17: Dual Nature of Matter and Radiation
Which of the following options represent the variation of photoelectric current with property of light shown on the x-axis?
- A. A and D
- B. B and D
- C. A only
- D. A and C
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Q23
PHYSICS
Unit 10: Oscillations and Waves
A pipe open at both ends has a fundamental frequency $f$ in air. The pipe is now dipped vertically in a water drum to half of its length. The fundamental frequency of the air column is now equal to :
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2025 (3 sets)
- A. 3f/2
- B. 2f
- C. f/2
- D. f
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Q24
PHYSICS
Unit 10: Oscillations and Waves
Two identical point masses P and Q, suspended from two separate massless springs of spring constants $k_1$ and $k_2$, respectively, oscillate vertically. If their maximum speeds are the same, the ratio $(A_Q/A_P)$ of the amplitude $A_Q$ of mass Q to the amplitude $A_P$ of mass P is:
↻ Repeated question — also appeared in
2025 (3 sets)
- A. \sqrt{k_2/k_1}
- B. \sqrt{k_1/k_2}
- C. k_2/k_1
- D. k_1/k_2
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Q25
PHYSICS
Unit 19: Electronic Devices
The output (Y) of the given logic implementation is similar to the output of an/a ___ gate.
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2025 (2 sets)
- A. OR
- B. NOR
- C. AND
- D. NAND
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Q26
PHYSICS
Unit 9: Kinetic Theory of Gases
An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature 27°C. The mass of the oxygen withdrawn from the cylinder is nearly equal to: (Given, $R = 100/12$ J mol⁻¹ K⁻¹, and molecular mass of $O_2 = 32$, 1 atm pressure = $1.01 \times 10^5$ N/m)
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2025 (2 sets)
- A. 0.116 kg
- B. 0.156 kg
- C. 0.125 kg
- D. 0.144 kg
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Q27
PHYSICS
Unit 16: Optics
In a certain camera, a combination of four similar thin convex lenses are arranged axially in contact. Then the power of the combination and the total magnification in comparison to the power ($p$) and magnification ($m$) for each lens will be, respectively -
↻ Repeated question — also appeared in
2025 (3 sets)
- A. 4p and $m^4$
- B. $p^4$ and $m^4$
- C. 4p and 4m
- D. $p^4$ and 4m
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Q28
PHYSICS
Unit 8: Thermodynamics
Two gases $A$ and $B$ are filled at the same pressure in separate cylinders with movable pistons of radius $r_A$ and $r_B$, respectively. On supplying an equal amount of heat to both the systems reversibly under constant pressure, the pistons of gas $A$ and $B$ are displaced by 16 cm and 9 cm, respectively. If the change in their internal energy is the same, then the ratio $r_A/r_B$ is equal to
↻ Repeated question — also appeared in
2025 (2 sets)
- A. $2/\sqrt{3}$
- B. $\sqrt{3}/2$
- C. $4/3$
- D. $3/4$
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Q30
PHYSICS
Unit 5: Rotational Motion
A bob of heavy mass $m$ is suspended by a light string of length $l$. The bob is given a horizontal velocity $v_0$ as shown in figure. If the string gets slack at some point P making an angle $\theta$ from the horizontal, the ratio of the speed $v$ of the bob at point P to its initial speed $v_0$ is:
↻ Repeated question — also appeared in
2025 (2 sets)
- A. $(\frac{\cos \theta}{2 + 3 \sin \theta})^{1/2}$
- B. $(\frac{\sin \theta}{2 + 3 \sin \theta})^{1/2}$
- C. $(\sin \theta)^{1/2}$
- D. $(\frac{1}{2 + 3 \sin \theta})^{1/2}$
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Q31
PHYSICS
Unit 1: Physics and Measurement
A physical quantity $P$ is related to four observations $a, b, c$ and $d$ as follows: $P = a^3b^2 / c\sqrt{d}$. The percentage errors of measurement in $a, b, c$ and $d$ are 1%, 3%, 2%, and 4% respectively. The percentage error in the quantity $P$ is
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2025 (4 sets)
- A. 13%
- B. 15%
- C. 10%
- D. 2%
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Q31
PHYSICS
Unit 20: Experimental Skills
A physical quantity $P$ is related to four observations $a$, $b$, $c$ and $d$ as follows: $$P = \frac{a^3b^2}{c\sqrt{d}}$$ The percentage errors of measurement in $a$, $b$, $c$ and $d$ are 1%, 3%, 2%, and 4% respectively. The percentage error in the quantity $P$ is
- A. 13%
- B. 15%
- C. 10%
- D. 2%
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Q32
PHYSICS
Unit 6: Gravitation
The Sun rotates around its centre once in 27 days. What will be the period of revolution if the Sun were to expand to twice its present radius without any external influence? Assume the Sun to be a sphere of uniform density.
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2025 (1 set)
- A. 115 days
- B. 108 days
- C. 100 days
- D. 105 days
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Q33
PHYSICS
Unit 6: Gravitation
The radius of Martian orbit around the Sun is about 4 times the radius of the orbit of Mercury. The Martian year is 687 Earth days. Then which of the following is the length of 1 year on Mercury?
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2025 (5 sets)
- A. 172 earth days
- B. 124 earth days
- C. 88 earth days
- D. 225 earth days
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Q33
PHYSICS
Unit 6: Gravitation
The radius of Martian orbit around the Sun is about 4 times the radius of the orbit of Mercury. The Martian year is 687 Earth days. Then which of the following is the length of 1 year on Mercury?
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2025 (5 sets)
- A. 172 earth days
- B. 124 earth days
- C. 88 earth days
- D. 225 earth days
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Q34
PHYSICS
Unit 12: Current Electricity
A wire of resistance $R$ is cut into 8 equal pieces. From these pieces two equivalent resistances are made by adding four of these together in parallel. Then these two sets are added in series. The net effective resistance of the combination is :
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2025 (4 sets)
- A. R/16
- B. R/8
- C. R/64
- D. R/32
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Q34
PHYSICS
Unit 12: Current Electricity
A wire of resistance $R$ is cut into 8 equal pieces. From these pieces two equivalent resistances are made by adding four of these together in parallel. Then these two sets are added in series. The net effective resistance of the combination is:
↻ Repeated question — also appeared in
2025 (4 sets)
- A. R/16
- B. R/8
- C. R/64
- D. R/32
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Q35
PHYSICS
Unit 17: Dual Nature of Matter and Radiation
A photon and an electron (mass $m$) have the same energy $E$. The ratio ($\lambda_{photon}/\lambda_{electron}$) of their de Broglie wavelengths is: ($c$ is the speed of light)
↻ Repeated question — also appeared in
2025 (5 sets)
- A. $c\sqrt{2mE}$
- B. $\frac{1}{c}\sqrt{E/2m}$
- C. $\sqrt{E/2m}$
- D. $c\sqrt{2mE}$
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Q35
PHYSICS
Unit 17: Dual Nature of Matter and Radiation
A photon and an electron (mass $m$) have the same energy $E$. The ratio $(\lambda_{\text{photon}} / \lambda_{\text{electron}})$ of their de Broglie wavelengths is: ($c$ is the speed of light)
↻ Repeated question — also appeared in
2025 (5 sets)
- A. $c\sqrt{2mE}/E$
- B. $(1/c)\sqrt{E/2m}$
- C. $\sqrt{E/2m}$
- D. $c\sqrt{2mE}$
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Q36
PHYSICS
Unit 5: Rotational Motion
A sphere of radius $R$ is cut from a larger solid sphere of radius $2R$ as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is:
↻ Repeated question — also appeared in
2025 (3 sets)
- A. 7/57
- B. 7/64
- C. 7/8
- D. 7/40
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Q37
PHYSICS
Unit 13: Magnetic Effects of Current and Magnetism
An electron (mass $9\times 10^{-31}$ kg and charge $1.6\times 10^{-19}$ C) moving with speed $c/100$ ($c$ = speed of light) is injected into a magnetic field $B$ of magnitude $9\times 10^{-4}$ T perpendicular to its direction of motion. We wish to apply an uniform electric field $E$ together with the magnetic field so that the electron does not deflect from its path. Then (speed of light $c = 3\times 10^8$ ms$^{-1}$)
↻ Repeated question — also appeared in
2025 (4 sets)
- A. $E$ is parallel to $B$ and its magnitude is $27\times 10^2$ V m$^{-1}$
- B. $E$ is parallel to $B$ and its magnitude is $27\times 10^4$ V m$^{-1}$
- C. $E$ is perpendicular to $B$ and its magnitude is $27\times 10^4$ V m$^{-1}$
- D. $E$ is perpendicular to $B$ and its magnitude is $27\times 10^2$ V m$^{-1}$
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Q38
PHYSICS
Unit 15: Electromagnetic Waves
The electric field in a plane electromagnetic wave is given by $E_z = 60 \cos(5x + 1.5 \times 10^9 t) \text{ V/m}$. Then expression for the corresponding magnetic field is (here subscripts denote the direction of the field):
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2025 (2 sets)
- A. $B_z = 60 \cos(5x + 1.5 \times 10^9 t) \text{ T}$
- B. $B_y = 60 \sin(5x + 1.5 \times 10^9 t) \text{ T}$
- C. $B_y = 2 \times 10^{-7} \cos(5x + 1.5 \times 10^9 t) \text{ T}$
- D. $B_x = 2 \times 10^{-7} \cos(5x + 1.5 \times 10^9 t) \text{ T}$
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Q39
PHYSICS
Unit 6: Gravitation
A body weighs 48 N on the surface of the earth. The gravitational force experienced by the body due to the earth at a height equal to one-third the radius of the earth from its surface is:
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2025 (4 sets)
- A. 32 N
- B. 36 N
- C. 16 N
- D. 27 N
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Q40
PHYSICS
Unit 16: Optics
An unpolarized light beam travelling in air is incident on a medium of refractive index 1.73 at Brewster's angle. Then-
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2025 (3 sets)
- A. both reflected and transmitted light are perfectly polarized with angles of reflection and refraction close to 60° and 30°, respectively.
- B. transmitted light is completely polarized with angle of refraction close to 30°
- C. reflected light is completely polarized and the angle of reflection is close to 60°
- D. reflected light is partially polarized and the angle of reflection is close to 30°
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Q41
PHYSICS
Unit 12: Current Electricity
A constant voltage of 50 V is maintained between the points A and B of the circuit shown in the figure. The current through the branch CD of the circuit is:
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2025 (4 sets)
- A. 2.5 A
- B. 3.0 A
- C. 1.5 A
- D. 2.0 A
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Q42
PHYSICS
Unit 11: Electrostatics
The plates of a parallel plate capacitor are separated by $d$. Two slabs of different dielectric constant $K_1$ and $K_2$ with thickness $3d/8$ and $d/2$, respectively are inserted in the capacitor. Due to this, the capacitance becomes two times larger than when there is nothing between the plates. If $K_1 = 1.25 K_2$, the value of $K_1$ is:
↻ Repeated question — also appeared in
2025 (3 sets)
- A. 1.60
- B. 1.33
- C. 2.66
- D. 2.33
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Q42
PHYSICS
Unit 11: Electrostatics
The plates of a parallel plate capacitor are separated by $d$. Two slabs of different dielectric constant $K_1$ and $K_2$ with thickness $\frac{3}{8}d$ and $\frac{d}{2}$, respectively are inserted in the capacitor. Due to this, the capacitance becomes two times larger than when there is nothing between the plates. If $K_1 = 1.25 K_2$, the value of $K_1$ is:
↻ Repeated question — also appeared in
2025 (3 sets)
- A. 1.60
- B. 1.33
- C. 2.66
- D. 2.33
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Q43
PHYSICS
Unit 20: Experimental Skills
Consider the diameter of a spherical object being measured with the help of a Vernier callipers. Suppose its 10 Vernier Scale Divisions (V.S.D.) are equal to its 9 Main Scale Divisions (M.S.D.). The least division in the M.S. is 0.1 cm and the zero of V.S. is at $x = 0.1$ cm when the jaws of Vernier callipers are closed. If the main scale reading for the diameter is $M = 5$ cm and the number of coinciding vernier division is 8, the measured diameter after zero error correction, is
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2025 (1 set)
- A. 4.98 cm
- B. 5.00 cm
- C. 5.18 cm
- D. 5.08 cm
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Q44
PHYSICS
Unit 13: Magnetic Effects of Current and Magnetism
A 2 amp current is flowing through two different small circular copper coils having radii ratio 1:2. The ratio of their respective magnetic moments will be
↻ Repeated question — also appeared in
2025 (4 sets)
- A. 2:1
- B. 4:1
- C. 1:4
- D. 1:2
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Q46
CHEMISTRY
Unit 17: Organic Compounds Containing Oxygen
Identify the suitable reagent for the following conversion:
$$\text{Ph-CO-OCH}_3 \rightarrow \text{Ph-CHO}$$
- A. (i) NaBH$_4$, (ii) H$^+$/H$_2$O
- B. H$_2$ / Pd-BaSO$_4$
- C. (i) LiAlH$_4$, (ii) H$^+$/H$_2$O
- D. (i) AlH(iBu)$_2$ (ii) H$_2$O
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Q47
CHEMISTRY
Unit 14: Some Basic Principles of Organic Chemistry
The correct order of decreasing acidity of the following aliphatic acids is:
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- A. HCOOH > CH$_3$COOH > (CH$_3$)$_2$CHCOOH > (CH$_3$)$_3$CCOOH
- B. HCOOH > (CH$_3$)$_3$CCOOH > (CH$_3$)$_2$CHCOOH > CH$_3$COOH
- C. (CH$_3$)$_3$CCOOH > (CH$_3$)$_2$CHCOOH > CH$_3$COOH > HCOOH
- D. CH$_3$COOH > (CH$_3$)$_2$CHCOOH > (CH$_3$)$_3$CCOOH > HCOOH
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Q48
CHEMISTRY
Unit 20: Principles Related to Practical Chemistry
Which one of the following reactions does NOT belong to "Lassaigne's test"?
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- A. Na + X $\xrightarrow{\Delta}$ NaX
- B. 2CuO + C $\xrightarrow{\Delta}$ 2Cu + CO$_2$
- C. Na + C + N $\xrightarrow{\Delta}$ NaCN
- D. 2Na + S $\xrightarrow{\Delta}$ Na$_2$S
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Q49
CHEMISTRY
Unit 8: Chemical Kinetics
If the rate constant of a reaction is $0.03 \text{ s}^{-1}$, how much time does it take for $7.2 \text{ mol L}^{-1}$ concentration of the reactant to get reduced to $0.9 \text{ mol L}^{-1}$? (Given: $\log 2 = 0.301$)
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- A. 210 s
- B. 21.0 s
- C. 69.3 s
- D. 23.1 s
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Q50
CHEMISTRY
Unit 3: Chemical Bonding and Molecular Structure
Given below are two statements:
Statement I: A hypothetical diatomic molecule with bond order zero is quite stable.
Statement II: As bond order increases, the bond length increases.
In the light of the above statements, choose the most appropriate answer from the options given below:
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- A. Statement I is true but Statement II is false
- B. Statement I is false but Statement II is true
- C. Both Statement I and Statement II are true
- D. Both Statement I and Statement II are false
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Q51
CHEMISTRY
Unit 12: Coordination Compounds
Out of the following complex compounds, which of the compound will be having the minimum conductance in solution?
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- A. [Co(NH$_3$)$_6$]Cl$_3$
- B. [Co(NH$_3$)$_5$Cl]Cl$_2$
- C. [Co(NH$_3$)$_3$Cl$_3$]
- D. [Co(NH$_3$)$_4$Cl$_2$]Cl
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Q52
CHEMISTRY
Unit 5: Solutions
Which of the following aqueous solution will exhibit highest boiling point?
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- A. 0.01M Na$_2$SO$_4$
- B. 0.015M C$_6$H$_{12}$O$_6$
- C. 0.01M Urea
- D. 0.01M KNO$_3$
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Q53
CHEMISTRY
Unit 16: Organic Compounds Containing Halogens
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): R-I undergoes S$_N$2 reaction faster than R-Cl.
Reason (R): Iodine is a better leaving group because of its large size.
In the light of the above statements, choose the correct answer from the options given below
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- A. A is true but R is false
- B. A is false but R is true
- C. Both A and R are true and R is the correct explanation of A
- D. Both A and R are true but R is not the correct explanation of A
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Q54
CHEMISTRY
Unit 1: Some Basic Concepts in Chemistry
Consider the following compounds : KO$_2$, H$_2$O$_2$ and H$_2$SO$_4$. The oxidation states of the underlined elements in them are, respectively,
↻ Repeated question — also appeared in
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- A. +1, -2, and +4
- B. +4, -4, and +6
- C. +1, -1, and +6
- D. +2, -2, and +6
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Q55
CHEMISTRY
Unit 11: d- and f-Block Elements
Match List -I with List -II
List-I:
A. Haber process
B. Wacker oxidation
C. Wilkinson catalyst
D. Ziegler catalyst
List-II:
I. Fe catalyst
II. PdCl$_2$
III. [(PPh$_3$)$_3$RhCl]
IV. TiCl$_4$ with Al(CH$_3$)$_3$
- A. A-I, B-II, C-III, D-IV
- B. A-I, B-IV, C-III, D-II
- C. A-I, B-II, C-IV, D-III
- D. A-II, B-III, C-I, D-IV
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Q56
CHEMISTRY
Unit 10: p-Block Elements
Given below are two statements:
Statement I: Like nitrogen that can form ammonia, arsenic can form arsine.
Statement II: Antimony cannot form antimony pentoxide.
In the light of the above statements, choose the most appropriate answer from the options given below:
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- A. Statement I is correct but Statement II is incorrect
- B. Statement I is incorrect but Statement II is correct
- C. Both Statement I and Statement II are correct
- D. Both Statement I and Statement II are incorrect
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Q56
CHEMISTRY
Unit 10: p-Block Elements
Given below are two statements:
Statement I: Like nitrogen that can form ammonia, arsenic can form arsine.
Statement II: Antimony cannot form antimony pentoxide.
In the light of the above statements, choose the most appropriate answer from the options given below:
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2025 (2 sets)
- A. Statement I is correct but Statement II is incorrect
- B. Statement I is incorrect but Statement II is correct
- C. Both Statement I and Statement II are correct
- D. Both Statement I and Statement II are incorrect
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Q57
PHYSICS
Unit 13: Magnetic Effects of Current and Magnetism
Given below are two statements:
Statement I: Ferromagnetism is considered as an extreme form of paramagnetism.
Statement II: The number of unpaired electrons in a $Cr^{2+}$ ion (Z = 24) is the same as that of a $Nd^{3+}$ ion (Z = 60).
In the light of the above statements, choose the correct answer from the options given below:
- A. Statement I is true but Statement II is false
- B. Statement I is false but Statement II is true
- C. Both Statement I and Statement II are true
- D. Both Statement I and Statement II are false
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Q57
CHEMISTRY
Unit 11: d- and f-Block Elements
Given below are two statements :
Statement I : Ferromagnetism is considered as an extreme form of paramagnetism.
Statement II : The number of unpaired electrons in a Cr$^{2+}$ ion (Z = 24) is the same as that of a Nd$^{3+}$ ion (Z = 60).
In the light of the above statements, choose the correct answer from the options given below:
↻ Repeated question — also appeared in
2025 (2 sets)
- A. Statement I is true but Statement II is false
- B. Statement I is false but Statement II is true
- C. Both Statement I and Statement II are true
- D. Both Statement I and Statement II are false
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Q58
CHEMISTRY
Unit 15: Hydrocarbons
Which one of the following reactions does NOT give benzene as the product?
- A. Acetylene in red hot iron tube
- B. Phenyldiazonium chloride warming with water
- C. Sodium benzoate with sodalime
- D. n-hexane with $Mo_2O_3$ at 773K
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Q59
CHEMISTRY
Unit 3: Chemical Bonding and Molecular Structure
Match List-I with List-II:
List-I (Compound): A. $XeO_3$, B. $XeF_2$, C. $XeOF_4$, D. $XeF_6$
List-II (Geometry/Hybridization): I. $sp^3d$; linear, II. $sp^3$; pyramidal, III. $sp^3d^3$; distorted octahedral, IV. $sp^3d^2$; square pyramidal
- A. A-IV, B-II, C-III, D-I
- B. A-IV, B-II, C-I, D-III
- C. A-II, B-I, C-IV, D-III
- D. A-II, B-I, C-III, D-IV
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Q64
CHEMISTRY
Unit 4: Chemical Thermodynamics
$C(s) + 2H_2(g) \rightarrow CH_4(g); \Delta H = -74.8$ kJ $mol^{-1}$. Which of the following diagrams gives an accurate representation of the above reaction? [R $\rightarrow$ reactants; P $\rightarrow$ products]
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- A. Diagram 1
- B. Diagram 2
- C. Diagram 3
- D. Diagram 4
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Q66
CHEMISTRY
Unit 17: Organic Compounds Containing Oxygen
Total number of possible isomers (both structural as well as stereoisomers) of cyclic ethers of molecular formula $C_4H_8O$ is :
- A. 10
- B. 11
- C. 6
- D. 8
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Q67
CHEMISTRY
Unit 6: Equilibrium
For the reaction $A(g) \rightleftharpoons 2B(g)$, the backward reaction rate constant is higher than the forward reaction rate constant by a factor of 2500, at 1000 K. [Given: R = 0.0831 L atm $mol^{-1}$ $K^{-1}$]. $K_p$ for the reaction at 1000 K is:
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- A. 0.033
- B. 0.021
- C. 83.1
- D. 2.077 \times 10^5
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Q67
CHEMISTRY
Unit 8: Chemical Kinetics
For the reaction $A(g) \rightleftharpoons 2B(g)$, the backward reaction rate constant is higher than the forward reaction rate constant by a factor of 2500, at 1000 K. [Given: $R = 0.0831 \text{ L atm mol}^{-1} \text{ K}^{-1}$]. $K_p$ for the reaction at 1000 K is
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2025 (1 set)
- A. 0.033
- B. 0.021
- C. 83.1
- D. 2.077 \times 10^5
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Q68
PHYSICS
Unit 18: Atoms and Nuclei
The ratio of the wavelengths of the light absorbed by a Hydrogen atom when it undergoes $n = 2 \rightarrow n = 3$ and $n = 4 \rightarrow n = 6$ transitions, respectively, is:
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- A. 1/9
- B. 1/4
- C. 1/36
- D. 1/16
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Q68
PHYSICS
Unit 18: Atoms and Nuclei
The ratio of the wavelengths of the light absorbed by a Hydrogen atom when it undergoes $n = 2 \to n = 3$ and $n = 4 \to n = 6$ transitions, respectively, is
↻ Repeated question — also appeared in
2025 (5 sets)
- A. 1/9
- B. 1/4
- C. 1/36
- D. 1/16
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Q69
CHEMISTRY
Unit 7: Redox Reactions and Electrochemistry
If the molar conductivity ($\Lambda_m$) of a 0.050 mol $L^{-1}$ solution of a monobasic weak acid is 90 S $cm^2$ $mol^{-1}$, its extent (degree) of dissociation will be [Assume $\Lambda_m^\infty = 349.6 + 50.4 = 400$ S $cm^2$ $mol^{-1}$]:
↻ Repeated question — also appeared in
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- A. 0.225
- B. 0.215
- C. 0.115
- D. 0.125
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Q69
CHEMISTRY
Unit 7: Redox Reactions and Electrochemistry
If the molar conductivity ($\Lambda_m$) of a 0.050 mol L$^{-1}$ solution of a monobasic weak acid is 90 S cm$^2$ mol$^{-1}$, its extent (degree) of dissociation will be [Assume $\Lambda^\circ_+ = 349.6 \text{ S cm}^2 \text{ mol}^{-1}$ and $\Lambda^\circ_- = 50.4 \text{ S cm}^2 \text{ mol}^{-1}$].
↻ Repeated question — also appeared in
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- A. 0.225
- B. 0.215
- C. 0.115
- D. 0.125
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Q73
CHEMISTRY
Unit 8: Chemical Kinetics
If the half-life ($t_{1/2}$) for a first order reaction is 1 minute, then the time required for 99.9% completion of the reaction is closest to :
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- A. 5 minutes
- B. 10 minutes
- C. 2 minutes
- D. 4 minutes
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Q76
CHEMISTRY
Unit 2: Atomic Structure
Dalton's Atomic theory could not explain which of the following?
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- A. Law of multiple proportion
- B. Law of gaseous volume
- C. Law of conservation of mass
- D. Law of constant proportion
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Q81
CHEMISTRY
Unit 15: Hydrocarbons
Which one of the following compounds does not decolourize bromine water?
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- A. Phenyl ethene
- B. Aniline
- C. Cyclohexane
- D. Phenol
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Q81
CHEMISTRY
Unit 15: Hydrocarbons
Which one of the following compounds does not decolourize bromine water?
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- A. Phenyl-ethene
- B. Aniline
- C. Cyclohexane
- D. Phenol
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Q83
CHEMISTRY
Unit 13: Purification and Characterisation of Organic Compounds
Match List I with List II:
List I (Mixture)
A. $CHCl_3 + C_6H_5NH_2$
B. Crude oil in petroleum industry
C. Glycerol from spent-lye
D. Aniline-water
List II (Method of Separation)
I. Distillation under reduced pressure
II. Steam distillation
III. Fractional distillation
IV. Simple distillation
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- A. (1) A-III, B-IV, C-I, D-II
- B. (2) A-III, B-IV, C-II, D-I
- C. (3) A-IV, B-III, C-I, D-II
- D. (4) A-IV, B-III, C-II, D-I
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Q84
CHEMISTRY
Unit 9: Classification of Elements and Periodicity in Properties
Which among the following electronic configurations belong to main group elements?
A. $[Ne]3s^1$
B. $[Ar]3d^3 4s^2$
C. $[Kr]4d^{10} 5s^2 5p^5$
D. $[Ar]3d^{10} 4s^1$
E. $[Rn]5f^0 6d^2 7s^2$
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- A. (1) D and E only
- B. (2) A, C and D only
- C. (3) B and E only
- D. (4) A and C only
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Q85
CHEMISTRY
Unit 14: Some Basic Principles of Organic Chemistry
Which one of the following compounds can exist as cis-trans isomers?
- A. 1, 1-Dimethylcyclopropane
- B. 1,2-Dimethylcyclohexane
- C. Pent-1-ene
- D. 2-Methylhex-2-ene
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Q86
CHEMISTRY
Unit 6: Equilibrium
Phosphoric acid ionizes in three steps with their ionization constant values $K_{a_1}, K_{a_2}$ and $K_{a_3}$, respectively, while K is the overall ionization constant. Which of the following statements are true?
A. $\log K = \log K_{a_1} + \log K_{a_2} + \log K_{a_3}$
B. $H_3PO_4$ is a stronger acid than $H_2PO_4^-$ and $HPO_4^{2-}$
C. $K_{a_1} > K_{a_2} > K_{a_3}$
D. $K_{a_1} = \frac{K_{a_3} + K_{a_2}}{2}$
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- A. (1) B, C and D only
- B. (2) A, B and C only
- C. (3) A and B only
- D. (4) A and C only
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Q88
CHEMISTRY
Unit 4: Chemical Thermodynamics
Higher yield of $NO$ in $N_2(g) + O_2(g) \rightleftharpoons 2NO(g)$ can be obtained at [$\Delta H$ of the reaction $= +180.7 \text{ kJ mol}^{-1}$]
A. higher temperature
B. lower temperature
C. higher concentration of $N_2$
D. higher concentration of $O_2$
- A. (1) B, C, D only
- B. (2) A, C, D only
- C. (3) A, D only
- D. (4) B, C only
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Q89
CHEMISTRY
Unit 18: Organic Compounds Containing Nitrogen
Given below are two statements:
Statement I: Benzenediazonium salt is prepared by the reaction of aniline with nitrous acid at 273-278 K. It decomposes easily in the dry state.
Statement II: Insertion of iodine into the benzene ring is difficult and hence iodobenzene is prepared through the reaction of benzenediazonium salt with KI.
In the light of the above statements, choose the most appropriate answer from the options given below:
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- A. (1) Statement I is correct but Statement II is incorrect
- B. (2) Statement I is incorrect but Statement II is correct
- C. (3) Both Statement I and Statement II are correct
- D. (4) Both Statement I and Statement II are incorrect
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Q92
CHEMISTRY
Unit 19: Biomolecules
The protein portion of an enzyme is called:
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- A. Apoenzyme
- B. Prosthetic group
- C. Cofactor
- D. Coenzyme
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Q92
BIOLOGY
Unit 3: Cell Structure and Function
The protein portion of an enzyme is called:
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- A. Apoenzyme
- B. Prosthetic group
- C. Cofactor
- D. Coenzyme
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Q93
BIOLOGY
Unit 10: Ecology and Environment
Given below are two statements:
Statement I: The primary source of energy in an ecosystem is solar energy.
Statement II: The rate of production of organic matter during photosynthesis in an ecosystem is called net primary productivity (NPP).
In the light of the above statements, choose the most appropriate answer from the options given below:
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2025 (4 sets)
- A. Statement I is correct but statement II is incorrect
- B. Statement I is incorrect but statement II is correct
- C. Both statement I and statement II are correct
- D. Both statement I and statement II are incorrect
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Q94
BIOLOGY
Unit 6: Reproduction
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): A typical unfertilised, angiosperm embryo sac at maturity is 8 nucleate and 7-celled.
Reason (R): The egg apparatus has 2 polar nuclei.
In the light of the above statements, choose the correct answer from the options given below:
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2025 (4 sets)
- A. A is true but R is false
- B. A is false but R is true
- C. Both A and R are true and R is the correct explanation of A
- D. Both A and R are true but R is NOT the correct explanation of A
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Q95
BIOLOGY
Unit 5: Human Physiology
Neoplastic characteristics of cells refer to:
A. A mass of proliferating cell
B. Rapid growth of cells
C. Invasion and damage to the surrounding tissue
D. Those confined to original location
Choose the correct answer from the options given below:
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2025 (4 sets)
- A. A, B, D only
- B. B, C, D only
- C. A, B only
- D. A, B, C only
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Q96
BIOLOGY
Unit 1: Diversity in Living World
Which one of the following is the characteristic feature of gymnosperms?
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- A. Seeds are absent.
- B. Gymnosperms have flowers for reproduction.
- C. Seeds are enclosed in fruits.
- D. Seeds are naked.
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Q98
BIOLOGY
Unit 7: Genetics and Evolution
Which chromosome in the human genome has the highest number of genes?
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- A. Chromosome 1
- B. Chromosome 10
- C. Chromosome X
- D. Chromosome Y
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Q99
BIOLOGY
Unit 4: Plant Physiology
Which of the following statements about RuBisCO is true?
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- A. It is an enzyme involved in the photolysis of water.
- B. It catalyzes the carboxylation of RuBP.
- C. It is active only in the dark.
- D. It has higher affinity for oxygen than carbon dioxide.
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Q100
BIOLOGY
Unit 6: Reproduction
The first menstruation is called:
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- A. Diapause
- B. Ovulation
- C. Menopause
- D. Menarche
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Q101
BIOLOGY
Unit 9: Biotechnology and Its Applications
Which of the following genetically engineered organisms was used by Eli Lilly to prepare human insulin?
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- A. Virus
- B. Phage
- C. Bacterium
- D. Yeast
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Q102
BIOLOGY
Unit 1: Diversity in Living World
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): All vertebrates are chordates but all chordates are not vertebrate.
Reason (R): The members of subphylum vertebrata possess notochord during the embryonic period, the notochord is replaced by a cartilaginous or bony vertebral column in adults.
In the light of the above statements, choose the correct answer from the options given below:
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2025 (3 sets)
- A. A is true but R is false
- B. A is false but R is true
- C. Both A and R are true and R is the correct explanation of A
- D. Both A and R are true but R is not the correct explanation of A
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Q103
BIOLOGY
Unit 3: Cell Structure and Function
What is the main function of the spindle fibers during mitosis?
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- A. To repair damaged DNA
- B. To regulate cell growth
- C. To separate the chromosomes
- D. To synthesize new DNA
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Q103
BIOLOGY
Unit 3: Cell Structure and Function
What is the main function of the spindle fibers during mitosis?
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- A. To repair damaged DNA
- B. To regulate cell growth
- C. To separate the chromosomes
- D. To synthesize new DNA
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Q104
BIOLOGY
Unit 7: Genetics and Evolution
Match List I with List II :
| List-I | List-II |
| :--- | :--- |
| A. Alfred Hershey and Martha Chase | I. Streptococcus pneumoniae |
| B. Euchromatin | II. Densely packed and dark-stained |
| C. Frederick Griffith | III. Loosely packed and light-stained |
| D. Heterochromatin | IV. DNA as genetic material confirmation |
Choose the correct answer from the options given below :
- A. (1) A-IV, B-III, C-I, D-II
- B. (2) A-III, B-II, C-IV, D-I
- C. (3) A-II, B-IV, C-I, D-III
- D. (4) A-IV, B-II, C-I, D-III
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Q106
BIOLOGY
Unit 5: Human Physiology
In frog, the Renal portal system is a special venous connection that acts to link :
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- A. Kidney and intestine
- B. Kidney and lower part of body
- C. Liver and intestine
- D. Liver and kidney
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Q108
BIOLOGY
Unit 9: Biotechnology and Its Applications
Polymerase chain reaction (PCR) amplifies DNA following the equation.
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- A. 2n + 1
- B. 2N2
- C. N2
- D. 2n
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Q109
BIOLOGY
Unit 6: Reproduction
Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Both wind and water pollinated flowers are not very colourful and do not produce nectar.
Reason (R) : The flowers produce enormous amount of pollen grains in wind and water pollinated flowers.
In the light of the above statements, choose the correct answer from the options given below:
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2025 (4 sets)
- A. (1) A is true but R is false
- B. (2) A is false but R is true
- C. (3) Both A and R are true and R is the correct explanation of A
- D. (4) Both A and R are true but R is NOT the correct explanation of A
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Q110
BIOLOGY
Unit 10: Ecology and Environment
Epiphytes that are growing on a mango branch is an example of which of the following?
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- A. Predation
- B. Amensalism
- C. Commensalism
- D. Mutualism
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Q112
BIOLOGY
Unit 9: Biotechnology and Its Applications
Identify the part of a bio-reactor which is used as a foam breaker from the given figure.
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- A. D
- B. C
- C. A
- D. B
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Q113
BIOLOGY
Unit 2: Structural Organisation in Animals and Plants
Frogs respire in water by skin and buccal cavity and on land by skin, buccal cavity and lungs.
Choose the correct answer from the following:
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- A. The statement is false for water but true for land
- B. The statement is false for both the environment
- C. The statement is true for water but false for land
- D. The statement is true for both the environment
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Q113
BIOLOGY
Unit 5: Human Physiology
Frogs respire in water by skin and buccal cavity and on land by skin, buccal cavity and lungs. Choose the correct answer from the following:
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2025 (2 sets)
- A. The statement is false for water but true for land
- B. The statement is false for both the environment
- C. The statement is true for water but false for land
- D. The statement is true for both the environment
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Q114
BIOLOGY
Unit 5: Human Physiology
Consider the following statements regarding function of adrenal medullary hormones :
A. It causes pupilary constriction
B. It is a hyperglycemic hormone
C. It causes piloerection
D. It increases strength of heart contraction
Choose the correct answer from the options given below :
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2025 (5 sets)
- A. A, C and D Only
- B. D Only
- C. C and D Only
- D. B, C and D Only
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Q114
BIOLOGY
Unit 5: Human Physiology
Consider the following statements regarding function of adrenal medullary hormones :
A. It causes pupilary constriction
B. It is a hyperglycemic hormone
C. It causes piloerection
D. It increases strength of heart contraction
Choose the correct answer from the options given below :
↻ Repeated question — also appeared in
2025 (5 sets)
- A. A, C and D Only
- B. D Only
- C. C and D Only
- D. B, C and D Only
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Q116
BIOLOGY
Unit 5: Human Physiology
Which of the following hormones released from the pituitary is actually synthesized in the hypothalamus?
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- A. Follicle-stimulating hormone (FSH)
- B. Adenocorticotrophic hormone (ACTH)
- C. Luteinizing hormone (LH)
- D. Anti-diuretic hormone (ADH)
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Q117
BIOLOGY
Unit 8: Biology and Human Welfare
Which of the following is an example of non-distilled alcoholic beverage produced by yeast?
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- A. Beer
- B. Rum
- C. Whisky
- D. Brandy
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Q118
BIOLOGY
Unit 7: Genetics and Evolution
What is the pattern of inheritance for polygenic trait?
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- A. Autosomal dominant pattern
- B. X-linked recessive inheritance pattern
- C. Mendelian inheritance pattern
- D. Non-mendelian inheritance pattern
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Q119
BIOLOGY
Unit 6: Reproduction
Match List -I with List -II.
List -I (Part of Sperm) | List -II (Function)
A. Head | I. Enzymes
B. Middle piece | II. Sperm motility
C. Acrosome | III. Energy
D. Tail | IV. Genetic material
Choose the correct answer from the options given below :
↻ Repeated question — also appeared in
2025 (1 set)
- A. A-III, B-IV, C-II, D-I
- B. A-III, B-II, C-I, D-IV
- C. A-IV, B-III, C-I, D-II
- D. A-IV, B-III, C-II, D-I
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Q120
BIOLOGY
Unit 2: Structural Organisation in Animals and Plants
Which of the following is an example of a zygomorphic flower?
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- A. Pea
- B. Chilli
- C. Petunia
- D. Datura
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Q121
BIOLOGY
Unit 10: Ecology and Environment
Which of following organisms cannot fix nitrogen?
A. Azotobacter B. Oscillatoria C. Anabaena D. Volvox E. Nostoc
Choose the correct answer from the options given below:
- A. B only
- B. E only
- C. A only
- D. D only
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Q122
BIOLOGY
Unit 10: Ecology and Environment
Which one of the following is an example of ex-situ conservation?
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- A. Zoos and botanical gardens
- B. Protected areas
- C. National Park
- D. Wildlife Sanctuary
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Q123
BIOLOGY
Unit 10: Ecology and Environment
Who is known as the father of Ecology in India?
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- A. Ram Udar
- B. Birbal Sahni
- C. S. R. Kashyap
- D. Ramdeo Misra
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Q124
BIOLOGY
Unit 7: Genetics and Evolution
Given below are two statements :
Statement I : In the RNA world, RNA is considered the first genetic material evolved to carry out essential life processes. RNA acts as a genetic material and also as a catalyst for some important biochemical reactions in living systems. Being reactive, RNA is unstable.
Statement II : DNA evolved from RNA and is a more stable genetic material. Its double helical strands being complementary, resist changes by evolving repairing mechanism.
In the light of the above statements, choose the most appropriate answer from the options given below :
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2025 (3 sets)
- A. Statement I is correct but statement II is incorrect
- B. Statement I is incorrect but statement II is correct
- C. Both statement I and statement II are correct
- D. Both statement I and statement II are incorrect
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Q125
BIOLOGY
Unit 7: Genetics and Evolution
Given below are two statements :
Statement I : Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II : RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below :
↻ Repeated question — also appeared in
2025 (4 sets)
- A. Statement I is correct but Statement II is incorrect
- B. Statement I is incorrect but Statement II is correct
- C. Both Statement I and Statement II are correct
- D. Both Statement I and Statement II are incorrect
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Q125
BIOLOGY
Unit 7: Genetics and Evolution
Given below are two statements :
Statement I : Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II : RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below :
↻ Repeated question — also appeared in
2025 (4 sets)
- A. Statement I is correct but Statement II is incorrect
- B. Statement I is incorrect but Statement II is correct
- C. Both Statement I and Statement II are correct
- D. Both Statement I and Statement II are incorrect
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Q126
BIOLOGY
Unit 5: Human Physiology
Match List -I with List -II.
List -I (Organ) | List -II (Hormone)
A. Heart | I. Erythropoietin
B. Kidney | II. Aldosterone
C. Gastro-intestinal tract | III. Atrial natriuretic factor
D. Adrenal Cortex | IV. Secretin
Choose the correct answer from the options given below :
↻ Repeated question — also appeared in
2025 (2 sets)
- A. A-I, B-III, C-IV, D-II
- B. A-III, B-I, C-IV, D-II
- C. A-II, B-I, C-III, D-IV
- D. A-IV, B-III, C-II, D-I
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Q126
BIOLOGY
Unit 5: Human Physiology
Match List -I with List -II.
List -I | List -II
---|---
A. Heart | I. Erythropoietin
B. Kidney | II. Aldosterone
C. Gastro-intestinal tract | III. Atrial natriuretic factor
D. Adrenal Cortex | IV. Secretin
Choose the correct answer from the options given below :
↻ Repeated question — also appeared in
2025 (2 sets)
- A. (1) A-I, B-III, C-IV, D-II
- B. (2) A-III, B-I, C-IV, D-II
- C. (3) A-II, B-I, C-III, D-IV
- D. (4) A-IV, B-III, C-II, D-I
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Q127
BIOLOGY
Unit 1: Diversity in Living World
All living members of the class Cyclostomata are:
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- A. Symbiotic
- B. Ectoparasite
- C. Free living
- D. Endo parasite
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Q127
BIOLOGY
Unit 1: Diversity in Living World
All living members of the class Cyclostomata are:
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2025 (5 sets)
- A. Symbiotic
- B. Ectoparasite
- C. Free living
- D. Endo parasite
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Q128
BIOLOGY
Unit 8: Biology and Human Welfare
Streptokinase produced by bacterium Streptococcus is used for
↻ Repeated question — also appeared in
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- A. Liver disease treatment
- B. Removing clots from blood vessels
- C. Curd production
- D. Ethanol production
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Q128
BIOLOGY
Unit 8: Biology and Human Welfare
Streptokinase produced by bacterium Streptococcus is used for
↻ Repeated question — also appeared in
2025 (5 sets)
- A. Liver disease treatment
- B. Removing clots from blood vessels
- C. Curd production
- D. Ethanol production
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Q129
BIOLOGY
Unit 1: Diversity in Living World
Role of the water vascular system in Echinoderms is :
A. Respiration and Locomotion
B. Excretion and Locomotion
C. Capture and transport of food
D. Digestion and Respiration
E. Digestion and Excretion
Choose the correct answer from the options given below :
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2025 (3 sets)
- A. B and C Only
- B. B, D and E Only
- C. A and B Only
- D. A and C Only
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Q130
BIOLOGY
Unit 1: Diversity in Living World
Match List I with List II.
List I | List II
---|---
A. Pteridophyte | I. Salvia
B. Bryophyte | II. Ginkgo
C. Angiosperm | III. Polytrichum
D. Gymnosperm | IV. Salvinia
Choose the option with all correct matches.
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2025 (2 sets)
- A. A-III, B-IV, C-I, D-II
- B. A-IV, B-III, C-II, D-I
- C. A-III, B-IV, C-II, D-I
- D. A-IV, B-III, C-I, D-II
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Q131
BIOLOGY
Unit 5: Human Physiology
Which are correct:
A. Computed tomography and magnetic resonance imaging detect cancers of internal organs.
B. Chemotherapeutics drugs are used to kill non-cancerous cells.
C. a-interferon activate the cancer patients' immune system and helps in destroying the tumour.
D. Chemotherapeutic drugs are biological response modifiers.
E. In the case of leukaemia blood cell counts are decreased.
Choose the correct answer from the options given below:
- A. C and D only
- B. A and C only
- C. B and D only
- D. D and E only
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Q132
BIOLOGY
Unit 6: Reproduction
What are the potential drawbacks in adoption of the IVF method?
A. High fatality risk to mother
B. Expensive instruments and reagents
C. Husband/wife necessary for being donors
D. Less adoption of orphans
E. Not available in India
F. Possibility that the early embryo does not survive
Choose the correct answer from the options given below :
↻ Repeated question — also appeared in
2025 (3 sets)
- A. A, B, C, D only
- B. A, B, C, E, F only
- C. B, D, F only
- D. A, C, D, F only
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Q133
BIOLOGY
Unit 6: Reproduction
A. The reductive division for the human female gametogenesis starts earlier than that of the male gametogenesis.
B. The gap between the first meiotic division and the second meiotic division is much shorter for males compared to females.
C. The first polar body is associated with the formation of the primary oocyte.
D. Luteinizing Hormone (LH) surge leads to disintegration of the endometrium and onset of menstrual bleeding.
Choose the correct answer from the options given below :
↻ Repeated question — also appeared in
2025 (1 set)
- A. B and D are true
- B. B and C are true
- C. A and B are true
- D. A and C are true
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Q134
BIOLOGY
Unit 4: Plant Physiology
In bryophytes, the gemmae help in which one of the following?
- A. Nutrient absorption
- B. Gaseous exchange
- C. Sexual reproduction
- D. Asexual reproduction
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Q135
BIOLOGY
Unit 3: Cell Structure and Function
Assertion (A) : The primary function of the Golgi apparatus is to package the materials made by the endoplasmic reticulum and deliver it to intracellular targets and outside the cell.
Reason (R) : Vesicles containing materials made by the endoplasmic reticulum fuse with the cis face of the Golgi apparatus, and they are modified and released from the trans face of the Golgi apparatus.
In the light of the above statements, choose the correct answer from the options given below :
- A. A is true but R is false
- B. A is false but R is true
- C. Both A and R are true and R is the correct explanation of A
- D. Both A and R are true but R is not the correct explanation of A
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Q136
BIOLOGY
Unit 1: Diversity in Living World
Which one of the following statements refers to Reductionist Biology?
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- A. Chemical approach to study and understand living organisms.
- B. Behavioural approach to study and understand living organisms.
- C. Physico-chemical approach to study and understand living organisms.
- D. Physiological approach to study and understand living organisms.
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Q136
BIOLOGY
Unit 3: Cell Structure and Function
Which one of the following statements refers to Reductionist Biology?
- A. Chemical approach to study and understand living organisms.
- B. Behavioural approach to study and understand living organisms.
- C. Physico-chemical approach to study and understand living organisms.
- D. Physiological approach to study and understand living organisms.
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Q137
BIOLOGY
Unit 5: Human Physiology
After maturation, in primary lymphoid organs, the lymphocytes migrate for interaction with antigens to secondary lymphoid organ(s) / tissue(s) like: A. thymus B. bone marrow C. spleen D. lymph nodes E. Peyer's patches Choose the correct answer from the options given below:
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2025 (2 sets)
- A. E, A, B only
- B. C, D, E only
- C. B, C, D only
- D. A, B, C only
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Q138
BIOLOGY
Unit 10: Ecology and Environment
Match List I with List II: List I: A. The Evil Quartet, B. Ex situ conservation, C. Lantana camara, D. Dodo. List II: I. Cryopreservation, II. Alien species invasion, III. Causes of biodiversity losses, IV. Extinction. Choose the option with all correct matches.
↻ Repeated question — also appeared in
2025 (1 set)
- A. A-III, B-IV, C-II, D-I
- B. A-III, B-II, C-IV, D-I
- C. A-III, B-II, C-I, D-IV
- D. A-III, B-I, C-II, D-IV
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Q139
BIOLOGY
Unit 6: Reproduction
How many meiotic and mitotic divisions need to occur for the development of a mature female gametophyte from the megaspore mother cell in an angiosperm plant?
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- A. 1 Meiosis and 3 Mitosis
- B. No Meiosis and 2 Mitosis
- C. 2 Meiosis and 3 Mitosis
- D. 1 Meiosis and 2 Mitosis
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Q140
BIOLOGY
Unit 5: Human Physiology
Which of the following type of immunity is present at the time of birth and is a non-specific type of defence in the human body?
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2025 (3 sets)
- A. Cell-mediated Immunity
- B. Humoral Immunity
- C. Acquired Immunity
- D. Innate Immunity
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Q141
BIOLOGY
Unit 10: Ecology and Environment
Given below are two statements : Statement I : Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it. Statement II : Fig wasp and fig tree exhibit mutual relationship as fig wasp completes its life cycle in fig fruit and fig fruit gets pollinated by fig wasp. In the light of the above statements, choose the most appropriate answer from the options given below :
↻ Repeated question — also appeared in
2025 (3 sets)
- A. Statement I is correct but statement II is incorrect
- B. Statement I is incorrect but statement II is correct
- C. Both statement I and statement II are correct
- D. Both statement I and statement II are incorrect
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Q142
BIOLOGY
Unit 6: Reproduction
Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus. Reason (R) : Presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells. In light of the above statements, choose the most appropriate answer from the options given below :
↻ Repeated question — also appeared in
2025 (1 set)
- A. A is true but R is false
- B. A is false but R is true
- C. Both A and R are true and R is the correct explanation of A
- D. Both A and R are true but R is NOT the correct explanation of A
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Q143
BIOLOGY
Unit 3: Cell Structure and Function
From the statements given below choose the correct option : A. The eukaryotic ribosomes are 80S and prokaryotic ribosomes are 70S. B. Each ribosome has two sub-units. C. The two sub-units of 80S ribosome are 60S and 40S while that of 70S are 50S and 30S. D. The two sub-units of 80S ribosome are 60S and 20S and that of 70S are 50S and 20S. E. The two sub-units of 80S are 60S and 30S and that of 70S are 50S and 30S.
↻ Repeated question — also appeared in
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- A. A, B, E are true
- B. B, D, E are true
- C. A, B, C are true
- D. A, B, D are true
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Q144
BIOLOGY
Unit 4: Plant Physiology
Which one of the following enzymes contains 'Haem' as the prosthetic group?
↻ Repeated question — also appeared in
2025 (1 set)
- A. Succinate dehydrogenase
- B. Catalase
- C. RuBisCo
- D. Carbonic anhydrase
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Q145
BIOLOGY
Unit 2: Structural Organisation in Animals and Plants
What is the name of the blood vessel that carries deoxygenated blood from the body to the heart in a frog ?
↻ Repeated question — also appeared in
2025 (1 set)
- A. Pulmonary vein
- B. Vena cava
- C. Aorta
- D. Pulmonary artery
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Q145
BIOLOGY
Unit 5: Human Physiology
What is the name of the blood vessel that carries deoxygenated blood from the body to the heart in a frog?
↻ Repeated question — also appeared in
2025 (3 sets)
- A. Pulmonary vein
- B. Vena cava
- C. Aorta
- D. Pulmonary artery
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Q146
BIOLOGY
Unit 1: Diversity in Living World
Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. A. Prothallus stage, B. Meiosis in spore mother cells, C. Fertilisation, D. Formation of archegonia and antheridia in gametophyte, E. Transfer of antherozoids to the archegonia in presence of water. Choose the correct answer from the options given below:
↻ Repeated question — also appeared in
2025 (3 sets)
- A. D, E, C, A, B
- B. E, D, C, B, A
- C. B, A, D, E, C
- D. B, A, E, C, D
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Q146
BIOLOGY
Unit 1: Diversity in Living World
Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence.
A. Prothallus stage
B. Meiosis in spore mother cells
C. Fertilisation
D. Formation of archegonia and antheridia in gametophyte.
E. Transfer of antherozoids to the archegonia in presence of water.
↻ Repeated question — also appeared in
2025 (3 sets)
- A. D, E, C, A, B
- B. E, D, C, B, A
- C. B, A, D, E, C
- D. B, A, E, C, D
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Q147
BIOLOGY
Unit 9: Biotechnology and Its Applications
The blue and white selectable markers have been developed which differentiate recombinant colonies from non-recombinant colonies on the basis of their ability to produce colour in the presence of a chromogenic substrate. Given below are two statements about this method: Statement I : The blue coloured colonies have DNA insert in the plasmid and they are identified as recombinant colonies. Statement II : The colonies without blue colour have DNA insert in the plasmid and are identified as recombinant colonies. In the light of the above statements, choose the most appropriate answer from the options given below:
↻ Repeated question — also appeared in
2025 (5 sets)
- A. Statement I is correct but Statement II is incorrect
- B. Statement I is incorrect but Statement II is correct
- C. Both statement I and Statement II are correct
- D. Both statement I and Statement II are incorrect
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Q147
BIOLOGY
Unit 9: Biotechnology and Its Applications
The blue and white selectable markers have been developed which differentiate recombinant colonies from non-recombinant colonies on the basis of their ability to produce colour in the presence of a chromogenic substrate. Given below are two statements about this method:
Statement I: The blue coloured colonies have DNA insert in the plasmid and they are identified as recombinant colonies.
Statement II: The colonies without blue colour have DNA insert in the plasmid and are identified as recombinant colonies.
↻ Repeated question — also appeared in
2025 (5 sets)
- A. Statement I is correct but Statement II is incorrect
- B. Statement I is incorrect but Statement II is correct
- C. Both Statement I and Statement II are correct
- D. Both Statement I and Statement II are incorrect
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Q148
BIOLOGY
Unit 8: Biology and Human Welfare
Which of the following microbes is NOT involved in the preparation of household products?
A. Aspergillus niger
B. Lactobacillus
C. Trichoderma polysporum
D. Saccharomyces cerevisiae
E. Propionibacterium sharmanii
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2025 (3 sets)
- A. C and D only
- B. C and E only
- C. A and B only
- D. A and C only
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Q149
BIOLOGY
Unit 9: Biotechnology and Its Applications
Silencing of specific mRNA is possible via RNAi because of -
↻ Repeated question — also appeared in
2025 (4 sets)
- A. Complementary tRNA
- B. Non-complementary ssRNA
- C. Complementary dsRNA
- D. Inhibitory ssRNA
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Q150
BIOLOGY
Unit 4: Plant Physiology
The complex II of mitochondrial electron transport chain is also known as
↻ Repeated question — also appeared in
2025 (3 sets)
- A. Cytochrome c oxidase
- B. NADH dehydrogenase
- C. Cytochrome bc1
- D. Succinate dehydrogenase
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Q151
BIOLOGY
Unit 1: Diversity in Living World
While trying to find out the characteristic of a newly found animal, a researcher did the histology of adult animal and observed a cavity with presence of mesodermal tissue towards the body wall but no mesodermal tissue was observed towards the alimentary canal. What could be the possible coelome of that animal?
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- A. Schizocoelomate
- B. Spongocoelomate
- C. Acoelomate
- D. Pseudocoelomate
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Q152
BIOLOGY
Unit 2: Structural Organisation in Animals and Plants
Given below are two statements:
Statement I: In a floral formula ⊕ stands for zygomorphic nature of the flower, and G stands for inferior ovary.
Statement II: In a floral formula ⊕ stands for actinomorphic nature of the flower and G stands for superior ovary.
In the light of the above statements, choose the correct answer from the options given below:
↻ Repeated question — also appeared in
2025 (2 sets)
- A. Statement I is correct but Statement II is incorrect
- B. Statement I is incorrect but Statement II is correct
- C. Both Statement I and Statement II are correct
- D. Both Statement I and Statement II are incorrect
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Q153
BIOLOGY
Unit 10: Ecology and Environment
Given below are two statements:
Statement I: In ecosystem, there is unidirectional flow of energy of sun from producers to consumers.
Statement II: Ecosystems are exempted from 2nd law of thermodynamics.
In the light of the above statements, choose the most appropriate answer from the options given below:
↻ Repeated question — also appeared in
2025 (4 sets)
- A. Statement I is correct but statement II is incorrect
- B. Statement I is incorrect but statement II is correct
- C. Both statement I and statement II are correct
- D. Both statement I and statement II are incorrect
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Q154
BIOLOGY
Unit 10: Ecology and Environment
Which of the following is the unit of productivity of an Ecosystem?
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- A. KCal m-3
- B. (KCal m-2)yr-1
- C. gm-2
- D. KCal m-2
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Q154
BIOLOGY
Unit 10: Ecology and Environment
Which of the following is the unit of productivity of an Ecosystem?
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- A. KCal m-3
- B. (KCal m-2)yr-1
- C. gm-2
- D. KCal m-2
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Q156
BIOLOGY
Unit 2: Structural Organisation in Animals and Plants
In the seeds of cereals, the outer covering of endosperm separates the embryo by a protein-rich layer called:
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2025 (2 sets)
- A. Integument
- B. Aleurone layer
- C. Coleoptile
- D. Coleorhiza
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Q156
BIOLOGY
Unit 4: Plant Physiology
In the seeds of cereals, the outer covering of endosperm separates the embryo by a protein-rich layer called:
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2025 (1 set)
- A. Integument
- B. Aleurone layer
- C. Coleoptile
- D. Coleorhiza
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Q157
BIOLOGY
Unit 4: Plant Physiology
Match List I with List II :
List I | List II
A. Chlorophyll a | I. Yellow-green
B. Chlorophyll b | II. Yellow
C. Xanthophylls | III. Blue-green
D. Carotenoids | IV. Yellow to Yellow-orange
Choose the option with all correct matches.
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2025 (2 sets)
- A. A-I, B-II, C-IV, D-III
- B. A-I, B-IV, C-III, D-II
- C. A-III, B-IV, C-II, D-I
- D. A-III, B-I, C-II, D-IV
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Q158
BIOLOGY
Unit 7: Genetics and Evolution
Who proposed that the genetic code for amino acids should be made up of three nucleotides?
↻ Repeated question — also appeared in
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- A. Jacque Monod
- B. Franklin Stahl
- C. George Gamow
- D. Francis Crick
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Q159
BIOLOGY
Unit 3: Cell Structure and Function
Histones are enriched with -
↻ Repeated question — also appeared in
2025 (4 sets)
- A. Phenylalanine & Leucine
- B. Phenylalanine & Arginine
- C. Lysine & Arginine
- D. Leucine & Lysine
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Q161
BIOLOGY
Unit 3: Cell Structure and Function
A specialised membranous structure in a prokaryotic cell which helps in cell wall formation, DNA replication and respiration is :
↻ Repeated question — also appeared in
2025 (4 sets)
- A. Cristae
- B. Endoplasmic Reticulum
- C. Mesosome
- D. Chromatophores
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Q162
BIOLOGY
Unit 7: Genetics and Evolution
Which factor is important for termination of transcription?
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2025 (4 sets)
- A. ρ (rho)
- B. γ (gamma)
- C. α (alpha)
- D. σ (sigma)
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Q163
BIOLOGY
Unit 5: Human Physiology
Which of the following statement is correct about location of the male frog copulatory pad?
↻ Repeated question — also appeared in
2025 (1 set)
- A. Second digit of fore limb
- B. First digit of the fore limb
- C. First and Second digit of fore limb
- D. First digit of hind limb
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Q165
BIOLOGY
Unit 5: Human Physiology
Identify the statement that is NOT correct.
↻ Repeated question — also appeared in
2025 (3 sets)
- A. Antigen binding site is located at C-terminal region of antibody molecules.
- B. Constant region of heavy and light chains are located at C-terminus of antibody molecules.
- C. Each antibody has two light and two heavy chains.
- D. The heavy and light chains are held together by disulfide bonds.
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Q166
BIOLOGY
Unit 4: Plant Physiology
Match List I with List II :
List I | List II
A. Scutellum | I. Persistent nucellus
B. Non-albuminous seed | II. Cotyledon of Monocot seed
C. Epiblast | III. Groundnut
D. Perisperm | IV. Rudimentary cotyledon
Choose the option with all correct matches.
↻ Repeated question — also appeared in
2025 (1 set)
- A. A-IV, B-III, C-I, D-II
- B. A-II, B-IV, C-III, D-I
- C. A-II, B-III, C-IV, D-I
- D. A-IV, B-III, C-II, D-I
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Q167
BIOLOGY
Unit 2: Structural Organisation in Animals and Plants
Find the statement that is NOT correct with regard to the structure of monocot stem.
↻ Repeated question — also appeared in
2025 (5 sets)
- A. Vascular bundles are conjoint and closed.
- B. Phloem parenchyma is absent.
- C. Hypodermis is parenchymatous.
- D. Vascular bundles are scattered.
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Q167
BIOLOGY
Unit 2: Structural Organisation in Animals and Plants
Find the statement that is NOT correct with regard to the structure of monocot stem.
↻ Repeated question — also appeared in
2025 (5 sets)
- A. Vascular bundles are conjoint and closed.
- B. Phloem parenchyma is absent.
- C. Hypodermis is parenchymatous.
- D. Vascular bundles are scattered.
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Q168
BIOLOGY
Unit 7: Genetics and Evolution
Twins are born to a family that lives next door to you. The twins are a boy and a girl. Which of the following must be true?
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2025 (3 sets)
- A. They were conceived through in vitro fertilization.
- B. They have 75% identical genetic content.
- C. They are monozygotic twins.
- D. They are fraternal twins.
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Q168
BIOLOGY
Unit 6: Reproduction
Twins are born to a family that lives next door to you. The twins are a boy and a girl. Which of the following must be true?
↻ Repeated question — also appeared in
2025 (1 set)
- A. They were conceived through in vitro fertilization.
- B. They have 75% identical genetic content.
- C. They are monozygotic twins.
- D. They are fraternal twins.
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Q169
BIOLOGY
Unit 7: Genetics and Evolution
Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.
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2025 (5 sets)
- A. Homology, convergent
- B. Analogy, divergent
- C. Analogy, convergent
- D. Homology, divergent
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Q169
BIOLOGY
Unit 7: Genetics and Evolution
Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.
↻ Repeated question — also appeared in
2025 (5 sets)
- A. Homology, convergent
- B. Analogy, divergent
- C. Analogy, convergent
- D. Homology, divergent
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Q170
BIOLOGY
Unit 4: Plant Physiology
Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants?
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2025 (5 sets)
- A. Gibberellin
- B. Cytokinin
- C. Ethylene
- D. Abscisic acid
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Q170
BIOLOGY
Unit 4: Plant Physiology
Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants?
↻ Repeated question — also appeared in
2025 (5 sets)
- A. Gibberellin
- B. Cytokinin
- C. Ethylene
- D. Abscisic acid
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Q171
BIOLOGY
Unit 9: Biotechnology and Its Applications
Why can't insulin be given orally to diabetic patients?
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2025 (4 sets)
- A. Because of structural variation
- B. Its bioavailability will be increased
- C. Human body will elicit strong immune response
- D. It will be digested in Gastro-Intestinal (GI) tract
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Q171
BIOLOGY
Unit 5: Human Physiology
Why can't insulin be given orally to diabetic patients?
↻ Repeated question — also appeared in
2025 (1 set)
- A. Because of structural variation
- B. Its bioavailability will be increased
- C. Human body will elicit strong immune response
- D. It will be digested in Gastro-Intestinal (GI) tract
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Q172
BIOLOGY
Unit 3: Cell Structure and Function
Name the class of enzyme that usually catalyze the following reaction :
$$S - G + S^\# \rightarrow S + S^\# - G$$
Where, G $\rightarrow$ a group other than hydrogen
S $\rightarrow$ a substrate
$S^\# \rightarrow$ another substrate
- A. Transferase
- B. Ligase
- C. Hydrolase
- D. Lyase
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Q173
BIOLOGY
Unit 9: Biotechnology and Its Applications
Given below are two statements :
Statement I : The DNA fragments extracted from gel electrophoresis can be used in construction of recombinant DNA.
Statement II : Smaller size DNA fragments are observed near anode while larger fragments are found near the wells in an agarose gel.
In the light of the above statements, choose the most appropriate answer from the options given below :
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2025 (3 sets)
- A. Statement I is correct but statement II is incorrect
- B. Statement I is incorrect but statement II is correct
- C. Both statement I and statement II are correct
- D. Both statement I and statement II are incorrect
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Q174
BIOLOGY
Unit 1: Diversity in Living World
The correct sequence of events in the life cycle of bryophytes is
A. Fusion of antherozoid with egg.
B. Attachment of gametophyte to substratum.
C. Reduction division to produce haploid spores.
D. Formation of sporophyte.
E. Release of antherozoids into water.
Choose the correct answer from the options given below :
↻ Repeated question — also appeared in
2025 (4 sets)
- A. B, E, A, D, C
- B. D, E, A, B, C
- C. D, E, A, C, B
- D. B, E, A, C, D
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Q175
BIOLOGY
Unit 7: Genetics and Evolution
Genes R and Y follow independent assortment. If RRYY produce round yellow seeds and rryy produce wrinkled green seeds, what will be the phenotypic ratio of the F2 generation?
↻ Repeated question — also appeared in
2025 (4 sets)
- A. Phenotypic ratio - 9 : 3 : 3 : 1
- B. Phenotypic ratio - 9 : 7
- C. Phenotypic ratio - 1 : 2 : 1
- D. Phenotypic ratio - 3 : 1
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Q176
BIOLOGY
Unit 1: Diversity in Living World
Each of the following characteristics represent a Kingdom proposed by Whittaker. Arrange the following in increasing order of complexity of body organization.
A. Multicellular heterotrophs with cell wall made of chitin.
B. Heterotrophs with tissue/organ/organ system level of body organization.
C. Prokaryotes with cell wall made of polysaccharides and amino acids.
D. Eukaryotic autotrophs with tissue/organ level of body organization.
E. Eukaryotes with cellular body organization.
Choose the correct answer from the options given below :
↻ Repeated question — also appeared in
2025 (3 sets)
- A. A, C, E, D, B
- B. C, E, A, B, D
- C. A, C, E, B, D
- D. C, E, A, D, B
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Q177
BIOLOGY
Unit 3: Cell Structure and Function
Match List -I with List -II.
List -I | List -II
A. Centromere | I. Mitochondrion
B. Cilium | II. Cell division
C. Cristae | III. Cell movement
D. Cell membrane | IV. Phospholipid Bilayer
Choose the correct answer from the options given below :
↻ Repeated question — also appeared in
2025 (3 sets)
- A. A-IV, B-II, C-III, D-I
- B. A-II, B-III, C-I, D-IV
- C. A-I, B-II, C-III, D-IV
- D. A-II, B-I, C-IV, D-III
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Q178
BIOLOGY
Unit 10: Ecology and Environment
Which one of the following equations represents the Verhulst-Pearl Logistic Growth of population?
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2025 (4 sets)
- A. $$\frac{dN}{dt} = rN \left( \frac{N-K}{N} \right)$$
- B. $$\frac{dN}{dt} = N \left( \frac{r-K}{K} \right)$$
- C. $$\frac{dN}{dt} = r \left( \frac{K-N}{K} \right)$$
- D. $$\frac{dN}{dt} = rN \left( \frac{K-N}{K} \right)$$
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