Question

Which process does not involve a catalyst?

Options

• Haber’s process

• Thermite process

• Ostwald’s process

• Contact process

Answer 1

Thermite process

Explanation:

The Thermite process is a simple redox reaction involving aluminium and metal oxides and does not require a catalyst. In contrast, Haber’s process, Ostwald’s process, and the Contact process all involve catalysts to increase reaction rates (iron in Haber’s, platinised asbestos in Ostwald’s, and vanadium pentoxide or platinised asbestos in the Contact process).