The sum of molar masses of the products A, B, C and D is
Similar to the above reaction, ring expansion and skeletal rearrangement of the carbon chain give rise to the most stable carbocation.
In all the 4 cans Benzene is the product !
Sum of molecular man of A, B, C, D
= 4x molecular man of Benzene
= 4x(72+6) = 4x78
= 312