1. A
   10%
2. B
   2%
3. C
   13%
4. D
   15%

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1. A
   $\frac{I_0}{2}$
2. B
   $\frac{I_0}{4}$
3. C
   $\frac{I_0}{8}$
4. D
   $\frac{I_0}{16}$

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1. A
   $\frac{k_2}{k_1}$
2. B
   $\frac{k_1}{k_2}$
3. C
   $\sqrt{\frac{k_2}{k_1}}$
4. D
   $\sqrt{\frac{k_1}{k_2}}$

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1. A
   $\frac{f}{2}$
2. B
   $f$
3. C
   $\frac{3f}{2}$
4. D
   $2f$

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1. A
   $\dfrac{1}{36}$
2. B
   $\dfrac{1}{16}$
3. C
   $\dfrac{1}{9}$
4. D
   $\dfrac{1}{4}$

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1. A
   A, B, and E only
2. B
   C and E only
3. C
   C and D only
4. D
   A, C, and E only

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1. A
   A-III, B-IV, C-II, D-I
2. B
   A-III, B-IV, C-I, D-II
3. C
   A-III, B-II, C-IV, D-I
4. D
   A-III, B-II, C-I, D-IV

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1. A
   2-methylcyclopentane bearing a $\text{CH}_2\text{NH}_2$ group on the adjacent carbon (1-methyl-2-(aminomethyl)cyclopentane)
2. B
   1-methyl-1-(aminomethyl)cyclopentane ($\text{CH}_3$ and $\text{CH}_2\text{NH}_2$ on the same carbon)
3. C
   1-methyl-2-cyclopentanecarbonitrile ($\text{CH}_3$ and NC on adjacent carbons)
4. D
   1-methyl-1-cyclopentanecarbonitrile (NC and $\text{CH}_3$ on the same carbon)

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1. A
   $E_n(\text{Li}^{2+}) = -19.62 \times 10^{-18}$ J; $r_n(\text{Li}^{2+}) = 17.6$ pm; $E_n(\text{He}^{+}) = -8.72 \times 10^{-18}$ J; $r_n(\text{He}^{+}) = 26.4$ pm
2. B
   $E_n(\text{Li}^{2+}) = -8.72 \times 10^{-18}$ J; $r_n(\text{Li}^{2+}) = 26.4$ pm; $E_n(\text{He}^{+}) = -19.62 \times 10^{-18}$ J; $r_n(\text{He}^{+}) = 17.6$ pm
3. C
   $E_n(\text{Li}^{2+}) = -19.62 \times 10^{-16}$ J; $r_n(\text{Li}^{2+}) = 17.6$ pm; $E_n(\text{He}^{+}) = -8.72 \times 10^{-16}$ J; $r_n(\text{He}^{+}) = 26.4$ pm
4. D
   $E_n(\text{Li}^{2+}) = -8.72 \times 10^{-16}$ J; $r_n(\text{Li}^{2+}) = 17.6$ pm; $E_n(\text{He}^{+}) = -19.62 \times 10^{-16}$ J; $r_n(\text{He}^{+}) = 17.6$ pm

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1. A
   A and C only
2. B
   B and E only
3. C
   A and D only
4. D
   A, D and E only

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1. A
   Both Statement I and Statement II are correct
2. B
   Both Statement I and Statement II are incorrect
3. C
   Statement I is correct but Statement II is incorrect
4. D
   Statement I is incorrect but Statement II is correct

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1. A
   B and E only
2. B
   A and C only
3. C
   D and E only
4. D
   A, C and D only

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1. A
   Law of conservation of mass
2. B
   Law of constant proportion
3. C
   Law of multiple proportion
4. D
   Law of gaseous volume

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1. A
   +1, $-1$, and +6
2. B
   +2, $-2$, and +6
3. C
   +1, $-2$, and +4
4. D
   +4, $-4$, and +6

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1. A
   2 minutes
2. B
   4 minutes
3. C
   5 minutes
4. D
   10 minutes

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1. A
   B < D < A < C
2. B
   B < A < D < C
3. C
   C < D < A < B
4. D
   C < A < D < B

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1. A
   Pent-1-ene
2. B
   2-Methylhex-2-ene
3. C
   1,1-Dimethylcyclopropane
4. D
   1,2-Dimethylcyclohexane

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1. A
   A and B only
2. B
   A and C only
3. C
   B, C and D only
4. D
   A, B and C only

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1. A
   $\text{C}_6\text{H}_5\text{COONa}$ with sodalime, $\Delta$
2. B
   n-hexane with $\text{Mo}_2\text{O}_3$ at 773 K, 10-20 atm
3. C
   $\text{H-C}\equiv\text{C-H}$ through red hot iron tube at 873 K
4. D
   Benzenediazonium chloride ($\text{C}_6\text{H}_5\text{N}_2^{+}\text{Cl}^{-}$) with $\text{H}_2\text{O}$, warm

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1. A
   0.115
2. B
   0.125
3. C
   0.225
4. D
   0.215

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1. A
   Both Statement I and Statement II are true
2. B
   Both Statement I and Statement II are false
3. C
   Statement I is true but Statement II is false
4. D
   Statement I is false but Statement II is true

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1. A
   $[\text{Co(NH}_3)_3\text{Cl}_3]$
2. B
   $[\text{Co(NH}_3)_4\text{Cl}_2]$
3. C
   $[\text{Co(NH}_3)_6]\text{Cl}_3$
4. D
   $[\text{Co(NH}_3)_5\text{Cl}]\text{Cl}$

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1. A
   A-II, B-I, C-IV, D-III
2. B
   A-II, B-I, C-III, D-IV
3. C
   A-IV, B-II, C-III, D-I
4. D
   A-IV, B-II, C-I, D-III

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1. A
   Energy profile: reactants (R) at higher level, activation barrier, products (P) at a level 74.8 kJ below R (exothermic, P lower than R)
2. B
   Energy profile with products (P) above reactants (R) by 74.8 (endothermic-shaped)
3. C
   Energy profile with a small barrier and P slightly below R (incorrect magnitude/shape)
4. D
   Energy profile with R and P at similar levels, 74.8 marked (incorrect)

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1. A
   A-II, B-IV, C-I, D-III
2. B
   A-II, B-I, C-IV, D-III
3. C
   A-III, B-I, C-IV, D-II
4. D
   A-III, B-II, C-I, D-IV

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