Question

The combination of $N_2$ and $H_2$ in the presence of $Fe$ as a catalyst is an example of heterogeneous catalysts.

• A. True
• B. False

Answer 1

The correct option is A True

A Catalyst is a substance which acclerates the rate of a chemical reaction without undergoing any change in its chemical composition or massduring the reaction. A catalyst acclerates the rate of a reaction by lowering the activation energy.

Heterogeneous catalysis refers to the form of catalysis where the phase of the catalyst differs from that of the reactants. Phase here refers not only to solid, liquid or gas but also immiscible liquids. For example, oil and water.
So, combination of $N_2$ and $H_2$ in the presence of $Fe$ as a catalyst is an example of heterogeneous catalysts as $Fe$ is solid while reactants are gases.