Question

Which phrase describes a homogeneous catalyst?

Answer 1

Think of what the word homogeneous means. Think if a catalyst is homogeneous in terms of the phase(liquid,gas, or solid) its in with that of the phase of the reactants then how would you define a homogeneous catalyst?

Answer 2

In chemistry, homogeneous catalysis is a sequence of reactions that involve a catalyst in the same phase as the reactants. Most commonly, a homogeneous catalyst is codissolved in a solvent with the reactants.

Read on for more details: http://en.wikipedia.org/wiki/Homogeneous...