In benzene,the $C-C-C$ and $C-C-H$ bond angles are.........

Sodium benzoate on heating with sodalime gives:

Which one of the following reactions does $NOT$ give benzene as the product?

Each carbon atom in benzene is in the state of hybridization:

The following reaction is given:
$\xrightarrow{\text{Electrolysis}} A$
$A$ is

The ease of nitration of the following three hydrocarbons follows the order: $(I)$ Toluene, $(II)$ $m$-Xylene, $(III)$ $p$-Xylene.