Question:
In which of the following reactions heterogeneous catalysis is involved?
(a) 2SO2(g) + O2(g)→ [NO(g)] 2SO3(g)
(b) 2SO2(g) → [Pt(s)] 2SO3(g)
(c) N2(g) + 3H2(g) → [Fe(s)] 2NH3(g)
(d) CH3COOCH3(l) + H2O (l) → [HCl(l)] CH3COOH (aq) + CH3OH (aq)
Solution:
Option (i) 2SO2(g) + O2(g)→ [NO(g)] 2SO3(g) is the answer.