$p-$Nitrotoluene on further nitration gives :

The reaction of aryl halide with sodium metal in dry ether to give biphenyl is known as

The correct order of reactivity of the following haloarenes towards nucleophilic substitution with aqueous $NaOH$ is:
Choose the correct answer from the options given below:

Which one of the following possesses the highest melting point?

With respect to chlorobenzene,which of the following statements is not correct?

Which of the following statements are correct?
$A$. The $C-Cl$ bond in chlorobenzene is shorter than in chloromethane.
$B$. It is more difficult to replace chlorine from chlorobenzene than from benzyl chloride.
$C$. The $C-Cl$ bond in chlorobenzene has some double bond character.
$D$. Chlorobenzene on chlorination gives $m$-dichlorobenzene.