Question

Match the following:

List-I (reaction)	List-II (catalyst)
A) SO2(g) + Cl2(g) → SO2Cl2(l)	I) Pt / Rh gauge
B) 2SO2(g) + O2(g) → 2SO3(g)	IV) V2O5
C) 4HCl + O2 → 2Cl2 + 2H2O	II) CuCl2
D) 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)	III) Charcoal

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

Hint:

Common catalysts: V$_2$O$_5$ for SO$_3$ formation, Pt/Rh for NO formation, CuCl$_2$ for HCl oxidation.

Answer 1

The Correct Option is A

Each reaction uses a specific catalyst:
A - Charcoal, B - V$_2$O$_5$, C - CuCl$_2$, D - Pt / Rh gauge. 
Matching these correctly gives option (1).