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Q1
mcq
1 mark
The rate constant of zero order reaction is
-
A.
S^{-1}
-
B.
mol L^{-1} S
-
C.
mol L^{-1} S^{-1}
-
D.
mol^{-1} L S^{-1}
Solution not generated yet — check back soon.
Q2
mcq
1 mark
Which ligand shows linkage isomerism in a coordination complex?
-
A.
NO_{2}^{-}
-
B.
NH_{3}
-
C.
CO
-
D.
H_{2}N - CH_{2} - CH_{2} - NH_{2}
Solution not generated yet — check back soon.
Q2
mcq
1 mark
In a complex, the ligand that shows linkage isomerism is
-
A.
$NO_2^-$
-
B.
$NH_3$
-
C.
CO
-
D.
$H_2N - CH_2 - CH_2 - NH_2$
Solution not generated yet — check back soon.
Q3
mcq
1 mark
The product obtained when $KMnO_{4}$ reacts with $I^{-}$ in weakly basic or neutral medium is
-
A.
IO_{3}^{-}
-
B.
IMnO_{4}^{+}
-
C.
I_{2}
-
D.
I_{3}O^{-}
Solution not generated yet — check back soon.
Q3
mcq
1 mark
The product obtained when $I^-$ reacts with $KMnO_4$ in faintly alkaline or neutral medium is
-
A.
$IO_3^-$
-
B.
$IMnO_4^+$
-
C.
$I_2$
-
D.
$I_3O^-$
Solution not generated yet — check back soon.
Q4
mcq
1 mark
The reagent used in Sandmeyer's reaction is
-
A.
Cu_{2}Cl
-
B.
Cu and HCl
-
C.
Cu_{2}Cl_{2}
-
D.
CuCl_{2}
Q5
mcq
1 mark
10% (w/w) glucose solution in water means
-
A.
10 g of glucose in 100 g of solution
-
B.
10 g of glucose in 10 g of solution
-
C.
10 g of glucose in 90 g of solution
-
D.
10 g of glucose in 90 ml of solution
Q5
mcq
1 mark
The mass percentage (w/w) of glucose in water is 10% means
-
A.
10g of glucose dissolved in 100g of water.
-
B.
10g of glucose dissolved in 10g of water
-
C.
10g of glucose dissolved in 90g of water
-
D.
10g of glucose dissolved in 90ml of water
Q6
mcq
1 mark
The bacterial cell wall is made up of ________
-
A.
Fructose
-
B.
Glycogen
-
C.
Starch
-
D.
Cellulose
Q6
mcq
1 mark
Cell wall of bacteria is made of
-
A.
Fructose
-
B.
Glycogen
-
C.
Starch
-
D.
Cellulose
Q7
mcq
1 mark
The most basic amine in aqueous solution is
-
A.
Methyl amine
-
B.
Dimethyl amine
-
C.
Trimethyl amine
-
D.
Tetra methyl ammonium ion
Q8
mcq
1 mark
The method used to separate products obtained when phenol reacts with dil. nitric acid at low temperature
-
A.
Simple distillation
-
B.
Sublimation
-
C.
Crystallization
-
D.
Steam distillation
Q9
mcq
1 mark
In monobromination of phenol, $Br_{2}$ molecule is polarized in
-
A.
Presence of strong acid only
-
B.
Even in the absence of Lewis acid
-
C.
Presence of Lewis acid only
-
D.
Presence of strong base only
Q9
mcq
1 mark
In mono bromination of phenol, the polarisation of Br$_2$ molecule takes place_______
-
A.
Only in the presence of strong acid
-
B.
Even in the absence of Lewis acid
-
C.
Only in the presence of Lewis acid
-
D.
Only in the presence of strong base.
Q10
mcq
1 mark
Which of the following 2M aqueous solution has highest boiling point?
-
A.
2M KCl, (i=2)
-
B.
2M K_{2}SO_{4}, (i=3)
-
C.
2M Al_{2}(SO_{4})_{3}, (i=5)
-
D.
2M K_{3}[Fe(CN)_{6}], (i=4)
Q10
mcq
1 mark
On assuming complete dissociation, the aqueous solution having highest Freezing point is
-
A.
2M KCl, (i≈2)
-
B.
2M K$_2$SO$_4$, (i≈3)
-
C.
2M Al$_2$(SO$_4$)$_3$, (i≈5)
-
D.
2M K$_3$[Fe(CN)$_6$], (i≈4)
Q11
mcq
1 mark
The alkyl halide that gives racemic mixture in $S_{N}1$ reaction is
-
A.
Tertiary butyl bromide
-
B.
2-chlorobutane
-
C.
Isopropyl chloride
-
D.
Methyl chloride
Q12
mcq
1 mark
Statement I: In the graph of $\Lambda_{m}$ vs $c^{1/2}$, the constant 'A' for NaCl and $MgSO_{4}$ is same. Statement II: The value of constant 'A' is same for all electrolytes of a particular type.
-
A.
Statement I and Statement II are true
-
B.
Statement I and Statement II are false
-
C.
Statement I is true and Statement II is false
-
D.
Statement I is false and Statement II is true
Q12
mcq
1 mark
Statement I: NaCl and MgSO$_4$ has same value of constant 'A' in plot of $\lambda_m$ against c$^{1/2}$. Statement II: All electrolytes of a particular type have the same value of 'A'
-
A.
Both statement I and II are correct
-
B.
Both statement I and II are incorrect
-
C.
Statement I is correct but statement II is incorrect
-
D.
Statement I is incorrect but statement II is correct.
Q13
mcq
1 mark
For the coordination compound $PtBr_{2} \cdot 4NH_{3}$, the reaction with excess $AgNO_{3}$ gives two moles of AgBr precipitate. The secondary and primary valencies of the metal ion in this complex are
-
A.
4 and 4
-
B.
6 and 2
-
C.
6 and 4
-
D.
4 and 2
Q13
mcq
1 mark
Co-ordination complex with composition PtBr$_2$·4NH$_3$ on reacting with excess of AgNO$_3$ produces two moles of AgBr precipitate. The secondary and primary valence of the metal ion in this complex is
-
A.
4 and 4
-
B.
6 and 2
-
C.
6 and 4
-
D.
4 and 2
Q14
mcq
1 mark
Benzaldehyde undergoes reduction in Cannizzaro reaction to give _________
-
A.
Sodium benzoate and benzyl alcohol
-
B.
Benzoic acid and benzyl alcohol
-
C.
Sodium benzoate only
-
D.
Benzyl alcohol only
Q14
mcq
1 mark
In cannizzaro reaction, benzaldehyde is reduced to produce _________
-
A.
Sodium benzoate and Benzyl alcohol
-
B.
Benzoic acid and Benzyl alcohol
-
C.
Sodium benzoate only
-
D.
Benzyl alcohol only.
Q15
mcq
1 mark
Tripeptide _________.
-
A.
Contains 3 amino acids and 2 peptide linkages
-
B.
Contains 3 amino acids and 3 peptide linkages
-
C.
Contains 2 amino acids and 3 peptide linkages
-
D.
Contains 3 amino acids and 4 peptide linkages
Q15
mcq
1 mark
A tripeptide contains _______
-
A.
Three amino acids and two peptide linkages
-
B.
Three amino acids and three peptide linkages
-
C.
Two amino acids and three peptide linkages
-
D.
Three amino acids and four peptide linkages
Q16
short answer
1 mark
The solubility of gases in liquid increases with increase in _________.
Q16
short answer
1 mark
As temperature increases solubility of gases in liquid _______.
Q17
short answer
1 mark
The number of hydroxyl groups present in ethylene glycol is _________.
Q18
short answer
1 mark
The number of non-bonding electron pairs on nitrogen atom in dimethyl amine is _________.
Q18
short answer
1 mark
The number of lone pair of electron present on nitrogen atom in dimethylamine is ______.
Q19
short answer
1 mark
The 3d series metal with positive electrode potential is _________.
Q19
short answer
1 mark
The element of 3d series to have positive standard electrode potential is ______.
Q20
short answer
1 mark
Oxidation of secondary alcohol produces _________.
Q20
short answer
1 mark
Secondary alcohol on oxidation produces _______.
Q21
short answer
2 marks
Define coordination number. Write the coordination number of the central metal ion in the complex $[Ni(NH_{3})_{6}]^{2+}$.
Q21
short answer
2 marks
Define collision frequency. Mention any one factor that affects effective collisions.
Q22
short answer
2 marks
Name any two transition metals found in U.K. coinage.
Q22
short answer
2 marks
Name the two main transition metals found in 'UK silver' coins.
Q23
short answer
2 marks
Name the two fat-soluble vitamins stored in the human body.
Q23
short answer
2 marks
Name two fat storing tissues found in human body that stores fat soluble vitamins.
Q24
short answer
2 marks
Explain Fittig reaction with a suitable chemical equation.
Q25
short answer
2 marks
Classify anisole and diethyl ether as simple and mixed ethers.
Q25
short answer
2 marks
Classify Anisole and methoxymethane into simple ether and mixed ether.
Q26
long answer
3 marks
Explain the hybridization, magnetic property and geometry of $[Ni(CN)_{4}]^{2-}$ based on Valence Bond Theory [VBT]. (Atomic number of Ni = 28)
Q26
long answer
3 marks
Using Valence Bond Theory [VBT], explain hybridisation, magnetic property and geometry of [Ni(CN)$_4$]$^{2-}$ (Atomic no. of Ni is 28)
Q27
long answer
3 marks
Write the balanced chemical equations involved in the production of potassium dichromate from chromite ore.
Q28
long answer
3 marks
Mention any three postulates of Werner's theory of coordination compounds.
Q28
long answer
3 marks
Write any three postulates of Werner's theory.
Q29
long answer
3 marks
(a) Name two colorless trivalent lanthanoid ions. (b) What type of lanthanoid compounds are used as catalysts in petroleum cracking?
Q30
long answer
3 marks
How many square pyramidal units are there in Decacarbonyl dimanganese(0)? Write its chemical formula and structure.
Q31
long answer
3 marks
What are colligative properties? Name the colligative property expressed in terms of mole fraction. Write the mathematical equation of that colligative property.
Q32
long answer
3 marks
Name the fuel cell used in Apollo space programme. Write its anodic and cathodic reactions.
Q33
long answer
3 marks
Derive an integrated rate equation for rate constant of First order reaction.
Q41
long answer
3 marks
400 $cm^3$ of an aqueous solution of a protein contains 2.52g of the protein. The osmotic pressure of such a solution at 300k is found to be 2.57 × $10^{–3}$ bar. Calculate the molar mass of the protein [R = 0.083L bar $mol^{–1}$ $K^{–1}$].
Q42
long answer
3 marks
The following reaction takes place in the cell. $Mg_{(s)} + 2Ag^+_{(0.0001M)} \rightarrow Mg^{2+}_{(0.2m)} + 2Ag_{(s)}$. If $E^o_{cell} = 3.17V$, calculate the $E_{cell}$ at 298k.
Q43
long answer
3 marks
The initial concentration of $N_2O_5$ in the following first order reaction $N_2O_{5(g)} \rightarrow 2NO_{2(g)} + \frac{1}{2}O_{2(g)}$ was 1.24 × $10^{–2}$ mol $L^{–1}$ at 318k. The concentration of $N_2O_5$ after 60 minutes was 0.20 × $10^{–2}$ mol $L^{–1}$. Calculate the rate constant of the reaction at 318K.
Q44
long answer
3 marks
The vapour pressure of pure liquids A and B are 450 and 700 mm Hg respectively at 350K. Find out the vapour pressure of solution 'A' if the total vapour pressure of solution is 600 mm Hg.
Q45
long answer
3 marks
If a current of 0.5 ampere flows through a metallic wire for 2 hours, then how many electrons would flow through the wire?
Q46
long answer
3 marks
The activation energy for reaction, $2HI_{(g)} \rightarrow H_{2(g)} + I_{2(g)}$ is 209.5 KJ$mol^{–1}$ at 581K. Calculate the fraction of molecules of reactants having energy equal to or greater than activation energy.
Q51
short answer
2 marks
Name two trivalent lanthanoid ions that are colourless.
Q52
short answer
1 mark
What type of lanthanoid compounds are employed as catalyst in petroleum cracking?
Q56
short answer
1 mark
State Faraday's 1st Law of electrolysis
Q57
short answer
2 marks
Mention any two factors that determines the product of electrolysis.
Q58
long answer
3 marks
Write the mechanism of $S_N1$ reaction involved in the hydrolysis of tertiary butyl bromide. Mention the reactant on which rate of reaction depends in above reaction.
Q59
long answer
2 marks
Explain Zaytsev (saytzeff) rule with suitable chemical equation.
Q60
long answer
2 marks
Write the Haworth structure of Maltose.
Q61
long answer
2 marks
What are globular proteins? Give one example for it.
Q62
long answer
1 mark
Name the nitrogen base present in RNA and absent in DNA.
Q63
long answer
3 marks
Among acetaldehyde and benzaldehyde which one undergoes aldol condensation reaction? Explain its aldol condensation with equation.
Q64
long answer
3 marks
Write the steps in mechanism of acid catalysed hydrolysis of ethene to ethanol.
Q65
long answer
2 marks
Between p-nitrophenol and p-cresol which has highest pKa and least pKa values?
Q66
long answer
3 marks
Write the chemical equations involved in Gabriel pthalimide synthesis for the preparation of methylamine.
Q67
long answer
2 marks
Name the reducing agent most preferred to reduce nitrobenzene to Aniline. Justify your answer.
Q68
long answer
3 marks
Compound 'A' with formula $C_7H_8$ on heating with alkaline $KMnO_4$ and on further acidification produces compound B. Compound B on heating with ammonia at high temperature gives Compound 'C' with formula $C_7H_7NO$. Write the structure of compounds A, B and C.
Q69
long answer
2 marks
Whether Aromatic Carboxylic acid undergoes Friedel-Crafts reaction? Give correct reason for it.