CBSE Class 12 Chemistry 2024 question paper (56/4)

1. A.
   195.3 $\mathrm{S\ cm^2\ mol^{-1}}$
2. B.
   43.3 $\mathrm{S\ cm^2\ mol^{-1}}$
3. C.
   314.3 $\mathrm{S\ cm^2\ mol^{-1}}$
4. D.
   271.6 $\mathrm{S\ cm^2\ mol^{-1}}$

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1. A.
   A – Methanol, B – Potassium formate
2. B.
   A – Ethanol, B – Potassium formate
3. C.
   A – Methanal, B – Ethanol
4. D.
   A – Methanol, B – Potassium acetate

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1. A.
   Saccharic acid
2. B.
   Gluconic acid
3. C.
   Ascorbic acid
4. D.
   Benzoic acid

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1. A.
   $\mathrm{Pd-BaSO_4}$
2. B.
   Anhydrous $\mathrm{AlCl_3}$
3. C.
   Iron (III) oxide
4. D.
   $\mathrm{HgSO_4}$

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1. A.
   $\mathrm{(CH_3)_3C-Br}$
2. B.
   $\mathrm{(CH_3)_2CH-Br}$
3. C.
   $\mathrm{CH_3-CH_2-Br}$
4. D.
   $\mathrm{(CH_3)_3C-CH_2-Br}$

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1. A.
   Scandium
2. B.
   Manganese
3. C.
   Chromium
4. D.
   Titanium

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1. A.
   $\mathrm{k = -Ae^{Ea/RT}}$
2. B.
   $\mathrm{k = e^{Ea/RT}}$
3. C.
   $\mathrm{k = Ae^{-Ea/RT}}$
4. D.
   $\mathrm{k = -Ae^{-Ea/RT}}$

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1. A.
   $\mathrm{CH_3-N(CH_3)-CH_3}$
2. B.
   $\mathrm{CH_3-CH(NH_2)-CH_3}$
3. C.
   $\mathrm{CH_3-NH-CH_2-CH_3}$
4. D.
   $\mathrm{(C_2H_5)_2CHNH_2}$

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1. A.
   Alkene
2. B.
   Primary alcohol
3. C.
   Tertiary alcohol
4. D.
   Secondary alcohol

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1. A.
   Slope = k, Intercept = $\mathrm{[R]_0}$
2. B.
   Slope = –k, Intercept = $\mathrm{[R]_0}$
3. C.
   Slope = k/2.303, Intercept = $\mathrm{ln[R]_0}$
4. D.
   Slope = –k/2.303, Intercept = ln A

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1. A.
   I – (r), II – (p), III – (s), IV – (q)
2. B.
   I – (q), II – (r), III – (p), IV – (s)
3. C.
   I – (s), II – (q), III – (p), IV – (r)
4. D.
   I – (p), II – (s), III – (r), IV – (q)

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1. A.
   $\mathrm{(n-1)\,d^{1-10}ns^{1-2}}$
2. B.
   $\mathrm{(n-1)\,d^{10}ns^{1-2}}$
3. C.
   $\mathrm{(n-1)\,d^{10}ns^{2-3}}$
4. D.
   $\mathrm{(n-1)\,d^{0}ns^{1-2}}$

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   266 $\mathrm{S\ cm^2\ mol^{-1}}$
2. B.
   622 $\mathrm{S\ cm^2\ mol^{-1}}$
3. C.
   288 $\mathrm{S\ cm^2\ mol^{-1}}$
4. D.
   822 $\mathrm{S\ cm^2\ mol^{-1}}$

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1. A.
   Scandium
2. B.
   Manganese
3. C.
   Chromium
4. D.
   Titanium

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1. A.
   $\mathrm{(CH_3)_3C-Br}$
2. B.
   $\mathrm{(CH_3)_2CH-Br}$
3. C.
   $\mathrm{CH_3-CH_2-Br}$
4. D.
   $\mathrm{(CH_3)_3C-CH_2-Br}$

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1. A.
   Saccharic acid
2. B.
   Gluconic acid
3. C.
   Ascorbic acid
4. D.
   Benzoic acid

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1. A.
   $\mathrm{Pd-BaSO_4}$
2. B.
   Anhydrous $\mathrm{AlCl_3}$
3. C.
   Iron (III) oxide
4. D.
   $\mathrm{HgSO_4}$

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1. A.
   A – Methanol, B – Potassium formate
2. B.
   A – Ethanol, B – Potassium formate
3. C.
   A – Methanal, B – Ethanol
4. D.
   A – Methanol, B – Potassium acetate

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1. A.
   Proper orientation only
2. B.
   A certain minimum amount of activation energy.
3. C.
   Threshold energy only.
4. D.
   Threshold energy and proper orientation both.

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1. A.
   $\mathrm{(CH_3)_2CHNH_2}$
2. B.
   $\mathrm{CH_3NHCH(CH_3)_2}$
3. C.
   $\mathrm{(CH_3)_3CNH_2}$
4. D.
   $\mathrm{CH_3(CH_2)_2NH_2}$

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1. A.
   Slope = k, Intercept = $\mathrm{[R]_0}$
2. B.
   Slope = –k, Intercept = $\mathrm{[R]_0}$
3. C.
   Slope = k/2.303, Intercept = $\mathrm{ln[R]_0}$
4. D.
   Slope = –k/2.303, Intercept = ln A

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1. A.
   $\mathrm{(n-1)\,d^{1-10}ns^{1-2}}$
2. B.
   $\mathrm{(n-1)\,d^{10}ns^{1-2}}$
3. C.
   $\mathrm{(n-1)\,d^{10}ns^{2-3}}$
4. D.
   $\mathrm{(n-1)\,d^{0}ns^{1-2}}$

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1. A.
   Alkene
2. B.
   Primary alcohol
3. C.
   Tertiary alcohol
4. D.
   Secondary alcohol

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1. A.
   I – (r), II – (p), III – (s), IV – (q)
2. B.
   I – (q), II – (r), III – (p), IV – (s)
3. C.
   I – (s), II – (q), III – (p), IV – (r)
4. D.
   I – (p), II – (s), III – (r), IV – (q)

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   198 $\mathrm{S\ cm^2\ mol^{-1}}$
2. B.
   858 $\mathrm{S\ cm^2\ mol^{-1}}$
3. C.
   588 $\mathrm{S\ cm^2\ mol^{-1}}$
4. D.
   891 $\mathrm{S\ cm^2\ mol^{-1}}$

Tap an option to check your answer.

1. A.
   Saccharic acid
2. B.
   Gluconic acid
3. C.
   Ascorbic acid
4. D.
   Benzoic acid

Tap an option to check your answer.

1. A.
   $\mathrm{Pd-BaSO_4}$
2. B.
   Anhydrous $\mathrm{AlCl_3}$
3. C.
   Iron (III) oxide
4. D.
   $\mathrm{HgSO_4}$

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1. A.
   Scandium
2. B.
   Manganese
3. C.
   Chromium
4. D.
   Titanium

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1. A.
   A – Methanol, B – Potassium formate
2. B.
   A – Ethanol, B – Potassium formate
3. C.
   A – Methanal, B – Ethanol
4. D.
   A – Methanol, B – Potassium acetate

Tap an option to check your answer.

1. A.
   $\mathrm{(CH_3)_3C-Br}$
2. B.
   $\mathrm{(CH_3)_2CH-Br}$
3. C.
   $\mathrm{CH_3-CH_2-Br}$
4. D.
   $\mathrm{(CH_3)_3C-CH_2-Br}$

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1. A.
   A
2. B.
   $\mathrm{e^{-Ea/RT}}$
3. C.
   K
4. D.
   $\mathrm{A\,e^{-Ea/RT}}$

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1. A.
   $\mathrm{(C_2H_5)_3N}$
2. B.
   $\mathrm{(C_2H_5)_2NH}$
3. C.
   $\mathrm{C_2H_5NH_2}$
4. D.
   $\mathrm{(CH_3)_3N}$

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1. A.
   $\mathrm{(n-1)\,d^{1-10}ns^{1-2}}$
2. B.
   $\mathrm{(n-1)\,d^{10}ns^{1-2}}$
3. C.
   $\mathrm{(n-1)\,d^{10}ns^{2-3}}$
4. D.
   $\mathrm{(n-1)\,d^{0}ns^{1-2}}$

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1. A.
   I – (r), II – (p), III – (s), IV – (q)
2. B.
   I – (q), II – (r), III – (p), IV – (s)
3. C.
   I – (s), II – (q), III – (p), IV – (r)
4. D.
   I – (p), II – (s), III – (r), IV – (q)

Tap an option to check your answer.

1. A.
   Slope = k, Intercept = $\mathrm{[R]_0}$
2. B.
   Slope = –k, Intercept = $\mathrm{[R]_0}$
3. C.
   Slope = k/2.303, Intercept = $\mathrm{ln[R]_0}$
4. D.
   Slope = –k/2.303, Intercept = ln A

Tap an option to check your answer.

1. A.
   Alkene
2. B.
   Primary alcohol
3. C.
   Tertiary alcohol
4. D.
   Secondary alcohol

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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