Question

Identify the catalytic reaction in which both reactants are in different phases.

• A. Ammonia synthesis by Haber process
• B. Synthesis of sulphur trioxide by lead chamber process
• C. Hydrogenation of vegetable oils
• D. Hydrolysis of methyl acetate

Hint:

In heterogeneous catalysis, reactants are in different physical states—commonly solid catalyst with gas or liquid reactants.

Answer 1

The Correct Option is C

Hydrogenation of vegetable oils involves gaseous hydrogen and liquid oil in the presence of solid Ni catalyst. This is a heterogeneous catalytic reaction with reactants in different phases.
Other processes involve homogeneous or single-phase reactions.