Benzene's extraordinary stability is related to

Why benzene shows extraordinary stability though it contains three double bonds?

Assertion: Benzene does not give electrophilic substition reactions. Reason: Benzene ring has extraordinarily stability because of delocalisation of six pi -electrons of three double bonds.

Acetic acid undergoes dimerisation in benzene, the van't Hoff factor i is related to degree of association of acid a, as

For a double refracting crystal, the refractive indices for the ordinary and extraordinary rays are denoted by n_0 and n_e . Which of the following relations is valid along the optical axis of the crystal?

For a double refracting crystal, the refractive indices for the ordinary and extraordinary rays are denoted by n_0 and n_e .Which of the following relations is valid along the optical axis of the crystal ?

In the conversion of p-nitrofluoro benzene to p-nitroanisole intermediate X is involved The true statements about the intermediate X is /are (i) the intermediate is aromatic (ii) the intermediate is resonance stabilized anion (iii) electron withdrawing group on the benzene ring stabilize the intermediate .

Define the term resonance and explain the extra stability of Benzene than its open analog (Hexa-1,3,5-tri-ene).

The nature of the wavefront corresponding to extraordinary ray inside a calcite crystal is :