Question

Which among the following catalysts is used in manufacture of sulphuric acid by contact process?

Options

• Ni

• Fe with Mo

• MnO₂

• V₂O₅

Answer 1

V₂O₅

Explanation:

Preparation of H₂SO₄ by contact process involves the conversion of sulphur dioxide to sulphur trioxide. In this conversion catalyst, V₂O₅ is used.

\[\ce{2SO2_{(g)} + O2_{(g)} ->[V2O5][\underset{2 bar}{720 K}] 2SO3_{(g)}}\]