The number of `pi` bond in the product are

The number of pi bonds in the major product will be

The number of pi bonds in the major product will be

"Phenol "overset(Na_(2)Cr_(2)O_(7))underset(H_(2)SO_(4))rarrX The ratio of the number of sigma to pi bonds in the products X is

"Phenol "overset(Na_(2)Cr_(2)O_(7))underset(H_(2)SO_(4))rarrX The ratio of the number of sigma to pi bonds in the products X is

The number of pi bonds in crotonaldehyde is