Question

Match the Compounds (List- I) with the appropriate Catalyst/Reagents (List- II) for their reduction into corresponding amines.

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

Hint:

The reduction of functional groups like amides, nitro compounds, and nitriles can be accomplished with specific reducing agents such as LiAlH, H/Ni, and Sn/HCl respectively.

Answer 1

The Correct Option is A

Chemical Reduction Reactions

1. (A) Amide \( R-C=O-NH_2 \):

To reduce an amide \( R-C=O-NH_2 \) to an amine, we use \( LiAlH_4 \) and \( H_2O \) (reagent III). \( LiAlH_4 \) is a strong reducing agent that reduces amides to amines.

2. (B) Nitrobenzene \( C_6H_5NO_2 \):

Nitrobenzene is reduced to aniline using \( H_2/Ni \) (reagent II), which is a catalytic hydrogenation process.

3. (C) Nitrile \( R-C \equiv N \):

Nitriles are reduced to amines using \( Sn \) and \( HCl \) (reagent IV), where the nitrile group is reduced to a primary amine.

4. (D) Aniline \( C_6H_5NH_2 \):

Aniline undergoes reduction by aqueous \( NaOH \) (reagent I), which can be used to dealkylate aromatic amines under certain conditions.

Matching:

\[ (A) \to (III), \quad (B) \to (II), \quad (C) \to (IV), \quad (D) \to (I) \]