Question

Mark the correct increasing order of reactivity of the following compounds with HBr/HCl.

(a)
(b)
(c)

विकल्प

• a < b < c

• b < a < c

• b < c < a

• c < b < a

Answer 1

b < c < a

Explanation:

It is type of nucleophilic substitution reaction followed by S_N1 mechanism. S_N1 mechanism depends on the stability of carbonation. Presence of electron-withdrawing group will decrease the stability of carbocation.