In the presence of light and heat,toluene is chlorinated and then reacts with aqueous $NaOH$ to give:

Which of the following would be the best synthesis of $2,2-$dimethylpropanoic acid?

Which among the following reactions forms acid anhydride?

Identify product $C$ in the following conversion sequence: $m$-Hydroxybenzaldehyde $\xrightarrow[\text{Protection of } -OH \text{ group}]{C_6H_5CH_2Cl} A$ $\xrightarrow{[O]} B$ $\xrightarrow{\text{deprotection}} C$.

When toluene is treated with $KMnO_4$,what is produced?

Identify the compounds $A$ and $B$ in the following reaction.