Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Haloalkanes and Haloarenes

Question:

Which of the following statements in incorrect regarding SN2 mechanisms?

Options:

The complete mechanism takes place in a single step

The rate of the reaction depends on the concentration of both reactants

The transition state is stable

There is inversion of configuration

Correct Answer:

The transition state is stable

Explanation:

In the transition state of SN2 mechanisms, the carbon atoms is simultaneously bonded to the incoming nucleophile and the outgoing group and is hence bonded to five atoms at the same time. Such a geometry is unstable and cannot be isolated.