Question

the major product of the following reaction is
(January 2019)
ans is b not c.
can someone explain why didn't the ring expand?​

Answer 1

Answer:

b

Explanation:

c would not be formed as when ring expands the CC(carbocation) formed would be 2°, methyl from adjacent carbon would immediately shift to give 3° CC, so in b and c, c has less probability of forming in reaction.