CBSE Class 12 Chemistry 2014 Outside Delhi Set 1 Solved Paper

Question : 24

Total: 30

(a) Draw the structure of major monohalo products in each of the following reactions:

(b) Which halogen compound in each of the following pairs will react faster in SN2 reaction:
(i) CH3‌Br or CH3I
(ii) (CH3)3C−Cl or CH3−Cl

Solution:

(a) (i) C6H5−CH2−Cl (ii)

(b) (i) The steric barrier surrounding the target atom affects the rate of the SN2 reaction. As CH3I presents less of a barrier, it will undergo the SN2 reaction more quickly than CH3‌Br.
(ii) Since CH3‌Cl is the major halide, it hinders OH− stability to act less, allowing it to react with SN2 more readily than (CH3)3‌CCl.

Go to Question:

Prev Question

Next Question