Question

Match List - I with List - II.

Choose the correct answer from the options given below :

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

Hint:

Associate name reactions with their unique "key reagents": Stephen = Tin chloride; Rosenmund = poisoned Palladium; Etard = Chromyl chloride.

Answer 1

The Correct Option is B

To solve this problem, we need to match the reagents in List-I with the corresponding reactions in List-II.

1. Rosenmund Reduction:  
   This reaction involves the reduction of acyl chlorides to aldehydes using hydrogen gas and a palladium catalyst poisoned by barium sulfate (H₂, Pd-BaSO₄). Therefore, A-II is the correct match.
2. Stephen Reaction: 
   In this reaction, nitriles are reduced to aldehydes using stannous chloride (SnCl₂, HCl) followed by hydrolysis. Thus, B-IV is the correct match.
3. Etard Reaction: 
   The Etard reaction involves the oxidation of methyl groups to aldehydes using chromyl chloride (CrO₂Cl₂) in carbon disulfide (CS₂). Therefore, C-I is the correct match.
4. Gattermann-Koch Reaction: 
   This reaction involves the formation of benzaldehyde from benzene using carbon monoxide (CO), hydrochloric acid (HCl), and anhydrous aluminum chloride (AlCl₃). Hence, D-III is the correct match.

By matching each reagent with its corresponding reaction, the correct answer is:

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