$Benzene$ $\xrightarrow[H_2SO_4]{HNO_3} (A)$ $\xrightarrow[FeCl_3]{Cl_2} (B)$
The major product $(B)$ is

In the following reaction sequence,the major products $A$ and $B$ are:

Given below are two statements $:$
Statement $(I) :$ On nitration of $m-$xylene with $HNO_3, H_2SO_4$ followed by oxidation,$4-$nitrobenzene$-1, 3-$dicarboxylic acid is obtained as the major product.
Statement $(II) :$ $-CH_3$ group is $o/p-$directing while $-NO_2$ group is $m-$directing group.
In the light of the above statements,choose the correct answer from the options given below $:$

$A$ $C_8H_{10}$ hydrocarbon is nitrated by $HNO_3$ and sulphuric acid. Two,and only two,$C_8H_9NO_2$ isomers are obtained. Which of the following fits this evidence?

In electrophilic aromatic substitution reaction,the nitro group is meta-directing because it

What is '$X$' in the given reaction?
$C_6H_6 + CH_2=CH_2 \xrightarrow{\text{Anhydrous } AlCl_3} X$