Question

Match the LIST-I with LIST-II 

Choose the correct answer from the options given below:

• A. A–IV, B–III, C–II, D–I
• B. A–II, B–I, C–IV, D–III
• C. A–III, B–IV, C–I, D–II
• D. A–III, B–I, C–IV, D–II

Hint:

Wolff–Kishner reduction occurs in basic medium, while Clemmensen reduction occurs in acidic medium.

Answer 1

The Correct Option is D

The given question involves matching reagents with their corresponding reactions involving carbonyl compounds. Let's analyze each option:

1. NH₂–NH₂, KOH: The combination of hydrazine (NH₂–NH₂) and potassium hydroxide is used in Wolff-Kishner reduction. This reaction reduces carbonyl compounds to alkanes. Hence, it matches with III (Wolff-Kishner Reduction).
2. Ag(NH₃)₂OH: This reagent is known as Tollen's reagent. It is used for identifying aldehydes, which reduces to form a silver mirror. It corresponds to I (Tollen's Test).
3. Aq. CuSO₄, Sodium Potassium tartrate, KOH: This mixture is known as Fehling's solution. It is used to test for reducing sugars and aldehydes. It matches with IV (Fehling's Test).
4. Zn - Hg, HCl: This combination is used in Clemmensen reduction, which reduces carbonyl compounds to hydrocarbons. It corresponds to II (Clemmensen Reduction).

Thus, the correct matching is:

• A–III: NH₂–NH₂, KOH - Wolff-Kishner Reduction
• B–I: Ag(NH₃)₂OH - Tollen's Test
• C–IV: Aq. CuSO₄, Sodium Potassium tartrate, KOH - Fehling's Test
• D–II: Zn - Hg, HCl - Clemmensen Reduction

Therefore, the correct answer is: A–III, B–I, C–IV, D–II.