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

Which type of chemical reactions are given by arene compounds? Give their suitable examples and reactions.

Which of the following species participates in the sulphonation of the benzene ring?

For the electrophilic substitution reaction involving sulphonation,which of the following sequences regarding the rate of reaction is true?

Benzene is treated with oleum to produce compound $(X)$,which when further heated with molten sodium hydroxide followed by acidification produces compound $(Y)$. The compound $(Y)$ is treated with zinc metal to produce compound $(Z)$. Identify the structure of compound $(Z)$ from the following options.

Rank the following compounds in order of increasing rate of reaction towards Electrophilic Aromatic Substitution $(EAS)$ with bromine in the presence of $FeBr_3$.