The catalyst used in Raschig's process is

Select the reaction giving the correct major product.

The $C-Cl$ bond in chlorobenzene as compared with the $C-Cl$ bond in methyl chloride is:

An equimolar mixture of toluene and chlorobenzene is treated with a mixture of conc. $H_{2}SO_{4}$ and conc. $HNO_{3}$. Indicate the correct statement from the following.

Which of the following groups acts as both $-I$ effect and $o, p$-directing group?

The main product of the following reaction will be
$1$-fluoro-$2$-chloro-$4$-nitrobenzene + piperidine $\to$ Product