Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Chemical Kinetics

Question:

Assertion: The molecularity of Pseudo-unimolecular reactions is not one but behaves like one.

Reason: Molecularity is defined for both elementary as well as complex reactions. 

Options:

Assertion and Reason both are correct statements and reason is the correct explanation for assertion.

Assertion and Reason both are correct statements and reason is not the correct explanation for assertion.

Assertion is correct statement but reason is wrong statement.

Assertion is wrong statement but reason is correct statement.

Correct Answer:

Assertion is correct statement but reason is wrong statement.

Explanation:

Molecularity is defined only for elementary reactions and there is no meaning of molecularity for complex reactions. 

Those first order reactions whose molecularity is not one but behaves like one are called Pseudo-unimolecular reactions.