Match List-I with List-II

Choose the correct answer from the options given below:

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

The correct answer is Option (1) → (A)-(IV), (B)-(III), (C)-(II), (D)-(I)

• Rosenmund Reaction: Reduction of acid chloride to aldehyde → H₂, Pd–BaSO₄ (often with sulfur or quinoline as poison).
• Stephen Reaction: Conversion of alkyl cyanide (R–CN) to aldehyde → SnCl₂ + HCl (then hydrolysis).
• Etard Reaction: Oxidation of toluene (or alkyl benzene) to benzaldehyde → CrO₂Cl₂ (chromyl chloride).
• Gattermann-Koch Reaction: Formylation of aromatic ring to give Ar–CHO → CO + HCl, anhyd. AlCl₃, CuCl.