Match List-I with List-II List-

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Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Aldehydes, Ketones and Carboxylic Acids

Question:

Match List-I with List-II

List-I (Name of the test/Reaction)	List-II (Species)
(A) Tollen's Test	(I) $Cu^{2+}$ and $OH^-$
(B) Fehling's Test	(II) $Zn-Hg$ and $HCl$
(C) Clemmensen reduction	(III) $2[Ag(NH_3)_2]^+$ and $OH^-$
(D) Wolff Kishner reduction	(IV) Hydrazine KOH/ethylene glycol

Choose the correct answer from the options given below:

Options:

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(III), (B)-(I), (C)-(II), (D)-(IV)

(A)-(I), (B)-(II), (C)-(IV), (D)-(III)

(A)-(III), (B)-(I), (C)-(IV), (D)-(II)

Correct Answer:

(A)-(III), (B)-(I), (C)-(II), (D)-(IV)

Explanation:

The correct answer is Option (2) → (A)-(III), (B)-(I), (C)-(II), (D)-(IV)

List-I (Name of the test/Reaction)	List-II (Species)
(A) Tollen's Test	(III) $2[Ag(NH_3)_2]^+$ and $OH^-$
(B) Fehling's Test	(I) $Cu^{2+}$ and $OH^-$
(C) Clemmensen reduction	(II) $Zn-Hg$ and $HCl$
(D) Wolff Kishner reduction	(IV) Hydrazine KOH/ethylene glycol

(A) Tollen's Test: Used to distinguish aldehydes (positive test gives silver mirror). Reagent: Ammoniacal silver nitrate, i.e., 2[Ag(NH₃)₂]⁺ and OH⁻ (III).
(B) Fehling's Test: Test for reducing sugars/aldehydes (positive test gives red ppt. of Cu₂O). Reagent: Alkaline solution containing Cu²⁺ and OH⁻ (I).
(C) Clemmensen reduction: Reduces carbonyl (C=O) to CH₂ in ketones/aldehydes (acidic conditions). Reagent: Zn-Hg and HCl (II).
(D) Wolff-Kishner reduction: Reduces carbonyl (C=O) to CH₂ (basic conditions). Reagent: Hydrazine + KOH/ethylene glycol (IV).