Question

Q1. Give two important features of solid catalyst with example.

Answer 1

Heterogeneous catalyst involves the use of a catalyst in a different phase from the reactants.Typical examples involves a solid catalyst with the reactants as either liquids or gases.In heterogeneous catalyst the reactants are adsorbed on the to the surface of the catalyst at active sites.There is interaction between the surface of the catalyst and the reactant molecules are finally desorbed.

Answer 2

1. Activity: the ability of a catalyst to convert feed stock to product

2. Selectivity: ability of a catalyst

to produce a desirable product

3. Catalyst life: the time require to be specific in action