Question

Hydrogenation is a chemical reaction between hydrogen gas and another substance. Hydrogenation of vegetable oils takes place in the presence of a metal catalyst. What kind of catalyst is this?

A. Homogeneous
B. Heterogeneous
C. Gaseous phase
D. Enzyme

Answer 1

First ask yourself is the catalyst(the metal) in the same phase as the reactants?

Answer 2

No. So it's B?

Answer 3

Yes, good job.

Answer 4

Thank you :)