Ncert Exercises & Solutions

Which of the following statements are correct about the kinetics of this reaction?

1. The rate of reaction depends on the concentration of only (i)

2. The rate of reaction depends on concentration of both (i) and (i)

3. Molecularity of reaction is one

4. Molecularity of reaction is two

(a c)

The above reaction indicate the $S_{N} 1$ mechanism. In $S_{N} 1$ mechanism formation of carbocation is a

slow and rate determining step. So, the rate of reaction depends only upon the concentration of substarte (i). therefore reaction is

‘unimolecular.