For a compound with molecular formula $C_7 H_8 O$,how many aromatic structures are possible?

$Benzene$ $\xrightarrow[{{H_2}S{O_4}}]{{HN{O_3}}}(A)$ $\xrightarrow[{FeC{l_3}}]{{C{l_2}}}(B)$
The major product $(B)$ is

What are the major products $X$ and $Y$ respectively in the following set of reactions?

Given below are two statements,one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$ : Benzene is more stable than hypothetical cyclohexatriene.
Reason $R$ : The delocalized $\pi$ electron cloud is attracted more strongly by nuclei of carbon atoms.
In the light of the above statements,choose the correct answer from the options given below:

Total number of aromatic compounds among the following compounds is:

The reaction of toluene with chlorine in the presence of light gives