Question

The reaction having catalyst and reactants phase $\ge$ ____________ is heterogeneous catalysis.

1. $1$
2. $2$
3. $3$
4. $0$

Answer 1

Heterogeneous catalysis involves the use of a catalyst in a different phase from the reactants. Typical examples involve a solid catalyst with the reactants as either liquids or gases. So, this involves atleast two different phases.