In which of the following reactions is heterogeneous catalysis involved?

(a) 2SO₂(g) + O₂(g) $NO (g)$ 2SO₃(g)

(b) 2SO₂(g) + O₂(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)

Question

In which of the following reactions is heterogeneous catalysis involved?

(a) 2SO₂(g) + O₂(g) $NO (g)$ 2SO₃(g)

(b) 2SO₂(g) + O₂(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)

TestHub · Accepted Answer

Pt and Fe are solid catalysts with gaseous reactants; NO and HCl are not heterogeneous in their listed reactions.

Chemistry - Surface Chemistry Question with Solution | TestHub