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Match List-I with List-II. List-I Reagents A. H2, Pd – BaSO4 B. SnCl2, HCl C. CrO2Cl2, CS2 D. CO, HCl Anhyd. AlCl3 List-II Reaction Name (Involving aldehydes) I. Etard Reaction II. Rosenmund Reduction III. Gatterman-Koch Reaction IV. Stephen Reaction Choose the correct answer from the options given below:

1. (1) A-II, B-III, C-IV, D-I
2. (2) A-IV, B-III, C-I, D-II
3. (3) A-IV, B-I, C-II, D-III
4. (4) A-II, B-IV, C-I, D-III

Correct answer: (4) A-II, B-IV, C-I, D-III

Solution

The correct option matches each reagent with its corresponding reaction: A (H2, Pd – BaSO4) is used in the Rosenmund Reduction (II), B (SnCl2, HCl) is involved in the Stephen Reaction (IV), C (CrO2Cl2, CS2) corresponds to the Etard Reaction (I), and D (CO, HCl with anhyd. AlCl3) is associated with the Gatterman-Koch Reaction (III). This alignment accurately reflects the specific reactions each reagent is known for.

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