Question

Regarding criteria of catalysis which one of the following statements is not true?

• A. The catalyst is changed chemically during the reaction.
• B. A small quantity of catalyst is often sufficient to bring about a considerable amount of the reaction.
• C. In reversible reaction, the catalyst alters the equilibrium position.
• D. The catalyst accelerates the rate of reaction.

Answer 1

Answer: (C)

In reversible reaction, the catalyst alters the equilibrium position.

The effect of catalyst is to increase speed of reaction by lowering the activation energy
As it affect forward and backward reaction equally hence it don't change any thermodynamical aspects of reaction.
Further catalyst don't take part in reaction so it don't change the final products.