Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Surface Chemistry

Question:

Which of the following statements is not correct?

Options:

Catalyst is not involved in the reaction

The concentration of a catalyst remains constant throughout the progress of chemical reaction

The mechanism of catalytic reactions may vary from reaction to reaction

NO acts as a homogenous catalyst in the oxidation of SO2 to SO3

Correct Answer:

Catalyst is not involved in the reaction

Explanation:

Catalyst is a substance which increases or decreases the rate of reaction but itself does not undergo any chemical change during the reaction. Catalysts that increase the rate are called positive catalysts and the catalysts that decrease the rate are called negative catalysts.