Chlorination of toluene in the presence of light and heat followed by treatment with aqueous $NaOH$ gives:

In $E2$ elimination,many substances follow the Hofmann rule,which means.....

Identify $(B)$ and $(C)$ and how are $(A)$ and $(C)$ related?

$A$ dihalogen derivative $X$ of a three-carbon hydrocarbon reacts with alcoholic $KOH$ to give another hydrocarbon,which gives a red precipitate with ammoniacal $Cu_2Cl_2$. Reaction of $X$ with aqueous $KOH$ gives an aldehyde. The compound $X$ is .......

The product of the reaction between ethylbenzene and $N$-bromosuccinimide $(NBS)$ is:

Explain isomerism in Haloalkanes.