Match Reagents with Carbonyl Reactions | JEE Main Organic Chemistry
Match the LIST-I with LIST-II

List-I Reagents
A. NH2 – NH2, KOH
B. Ag(NH3)2OH
C. Aq. CuSO4, Sodium Potassium tartrate, KOH
D. Zn – Hg, HCl

List-II Name of Reaction involving carbonyl compounds
I. Tollen's Test
II. Clemmensen Reduction
III. Wolff–Kishner Reduction
IV. Fehling's Test
A. A-IV, B-III, C-II, D-I
B. A-III, B-I, C-IV, D-II
C. A-II, B-I, C-IV, D-III
D. A-III, B-IV, C-I, D-II
Correct Answer: A-III, B-I, C-IV, D-II

Step-by-Step Explanation

A. NH2–NH2, KOH → Wolff–Kishner Reduction
Carbonyl compounds are reduced to hydrocarbons under strongly basic conditions.

B. Ag(NH3)2OH → Tollen's Test
Used to identify aldehydes by formation of silver mirror.

C. Aq. CuSO4, Sodium Potassium tartrate, KOH → Fehling's Test
Aliphatic aldehydes give red precipitate of Cu2O.

D. Zn–Hg, HCl → Clemmensen Reduction
Carbonyl group is reduced to –CH2 in acidic medium.

Hence, the correct matching is:
A-III, B-I, C-IV, D-II

This matching type question is highly important for JEE Main 2026, JEE Advanced and IIT JEE.

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Updated for JEE Main 2026: This PYQ is important for JEE Mains, JEE Advanced and other competitive exams. Practice more questions from this chapter.

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