Question

All $C-C$ bonds in benzene are equal due to

• A. Tautomerism
• B. Inductive effect
• C. Resonance
• D. Isomerism

Answer 1

The correct option is C Resonance

In benzene ring we can see both single bond and double bond. Bond length of single bonds are longer than double bond. But in benzene molecule all the $C-C$ bonds are equal in length. This is due to the resonance effect in benzene. The $pi$ electron in benzene undergo delocalisation in ring and make all the bond identical.