Rearrangement of Carbocations

How many 1,2-shifts are involved in the following rearrangement of carbocation?

Assertion: Product is isopropyl benzene Reason : Due to rearrangement of primary cabocation into secondary carbocation

Whenever an intermediate carbocation is formed in reaction it may rearranges. Only those carbocation will rearrange which can produce more stable species . It can be done either by : (i) Shifting of H, alkyl , aryl, bond (1,2-shifting ) (ii) Ring expansion (iii) Ring contraction Most stable rearranged carbocation is is

Statement-1: Carbocationic rearrangement is known as electrophilic rearrangement and Statement-2: Carbocations are stabilized by both hyperconjugation and +I effect.

Fries Rearrangement