The ratio of $\sigma$ and $\pi$ bonds in benzene is:

$TNT$ has the structure

How is benzene obtained?

The aromatic carbocation among the following is

Select the true statement about benzene from amongst the following.

Identify compound $A$ in the following reaction:
$\text{Benzene} + \text{ozone (excess)}$ $\rightarrow \text{Benzenetrizonide}$ $\xrightarrow{A} \text{glyoxal}$