$HOOC-COOH + HO^{18}CH_2-CH_2^{18}OH \xrightarrow[H^+]{\Delta} (A)$; Product $(A)$ is:

The structure of the product formed in the reaction given below is:

The above transformation can be carried out by:

Which of the following compounds does not form phenol or phenoxide upon reaction under standard laboratory conditions?

In the given reaction sequence,identify the correct reagents to prepare $A$ from $B$. The starting material is benzenesulfonic acid. The reaction with $\Delta / H_3O^+$ yields $B$ (benzene),and the reaction with $1. \text{Fused } NaOH, 2. H^+$ yields $A$ (phenol). Therefore,to prepare $A$ (phenol) from $B$ (benzene),the correct sequence of reagents is:

What are the products $X$ and $Y$ respectively in the reactions $I$ and $II$?