Heating benzoic acid with $X$ and phenol with $Y$ gives benzene. $X$ and $Y$ are respectively:

Benzoic acid on heating with $X$ gives benzene and phenol on heating with $Y$ gives benzene. What are $X$ and $Y$ respectively?

When phenol is allowed to react with $Br_2$ in $(i)$ $CS_2$ solution and $(ii)$ in aqueous solution,the resulting compounds are

In the given reaction: $[X] +$ Acetic anhydride $\rightarrow$ Aspirin,$[X]$ will be:

The nitration of phenol with dilute $HNO_3$ at low temperature yields a mixture of two isomers $(A)$ and $(B)$. Product $(A)$ is more volatile than product $(B)$. Identify $(A)$.

What is the name of the reaction between an aromatic acyl chloride and phenol in the presence of a base like $NaOH$ or pyridine?