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Match List-I with List-II. List-I (Processes/ Reactions) (A) 2SO2(g) + O2(g) → 2SO3(g) (B) 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) (C) N2(g) + 3H2(g) → 2NH3(g) (D) Vegetable oil(ℓ) + H2 → Vegetable ghee(s) List-II (Catalyst) (I) Fe(s) (II) Pt(s) – Rh(s) (III) V2O5 (IV) Ni(s) Choose the correct answer from the options given below :

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

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

Solution

The correct matches align the processes with their respective catalysts: the hydrogenation of vegetable oil to ghee uses nickel (IV), the oxidation of ammonia to nitric oxide uses platinum-rhodium (II), the synthesis of ammonia from nitrogen and hydrogen uses iron (III), and the formation of sulfur trioxide from sulfur dioxide and oxygen uses vanadium pentoxide (I).

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