Question

Which of the following statements is not correct?

Options

• A catalyst can not be recovered unchanged chemically at the end of reaction.

• A catalyst usually does not initiate a chemical reaction.

• A very small amount of catalyst is sufficient to catalyse the reaction.

• The action of a catalyst is specific.

Answer 1

A catalyst can not be recovered unchanged chemically at the end of reaction.

Explanation:

A catalyst is chemically unchanged at the end of a reaction. It may participate in intermediate steps but is regenerated at the end. This is a fundamental property of catalysts.