Q1
mcq
One kilogram force equals to:
- A. 9.8 dyne
- B. 9.8 \times 10^4 N
- C. 98 \times 10^4 dyne
- D. 980 dyne
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Q2
mcq
The eye defect ‘Presbyopia’ can be corrected by:
- A. convex lens
- B. concave lens
- C. convex mirror
- D. bifocal lens
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Q3
mcq
The work done in moving a charge of 10 C across two points in a circuit is 100 J. What is the potential difference between the points?
- A. 0.1 V
- B. 10 V
- C. 100 V
- D. 1000 V
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Q4
mcq
Artificial radioactivity was discovered by:
- A. Becquerel
- B. Irene Curie
- C. Roentgen
- D. Neils Bohr
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Q5
mcq
___________ is an important metal to form amalgam.
- A. Ag
- B. Hg
- C. Mg
- D. Al
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Q6
mcq
When the pressure is increased at constant temperature, the solubility of gases in liquid __________.
- A. no change
- B. increases
- C. decreases
- D. no reaction
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Q7
mcq
The pH of a solution is 3. Its $[OH^-]$ concentration is:
- A. 1 \times 10^{-3} M
- B. 3 M
- C. 1 \times 10^{-11} M
- D. 11 M
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Q8
mcq
$C_2H_5OH + 3O_2 \rightarrow 2CO_2 + 3H_2O$ is:
- A. Reduction of ethanol
- B. Combustion of ethanol
- C. Oxidation of ethanoic acid
- D. Oxidation of ethanal
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Q9
mcq
Casparian strips are present in the __________ of the root.
- A. cortex
- B. pith
- C. pericycle
- D. endodermis
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Q10
mcq
The centromere is found at the centre of the ___________ chromosome.
- A. Telocentric
- B. Metacentric
- C. Sub-metacentric
- D. Acrocentric
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Q11
mcq
World AIDS Day:
- A. December 1
- B. May 31
- C. April 22
- D. October 2
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Q12
mcq
Which software is used to create animation?
- A. Paint
- B. PDF
- C. MS Word
- D. Scratch
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Q15
short answer
State two conditions necessary for rusting of iron.
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Q16
short answer
Match the following:
1. Functional group -OH
2. Heterocyclic compounds
3. Unsaturated compounds
4. Soap
5. Carbocyclic compounds
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Q17
short answer
What is the importance of valves in the heart?
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Q18
short answer
What is Bolting? How can it be induced artificially?
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Q19
short answer
Identify the parts A, B, C and D in the given figure.
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Q20
short answer
The degenerated wing ____________ is a peculiar trait. Why is it called a peculiar trait?
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