When benzene vapor is passed through a tube at $700 - 800\,^oC$ or over molten lead,it yields ........

Which of the following reacts with benzene in the presence of anhydrous aluminum chloride to form acetophenone?

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:

Which of the following reactions is not possible for benzene due to its reversible nature?

Which of the following compounds contains an $S$ atom in its ring?

The rate of nitration will be