Which type of catalyst exists in the same phase as the reactants?
A
Autocatalyst
B
Homogeneous catalyst
C
Enzyme only
D
Heterogeneous catalyst
Correct Answer: Option B — Homogeneous catalyst
Explanation:
A homogeneous catalyst exists in the same physical phase as the reactants, typically all in liquid or gas form, allowing uniform interaction throughout the reaction mixture, unlike heterogeneous catalysts.