Question

What is the correct order of nitration of the following compounds?
$\underset{a}{C_6{H}_{5}C{H}_3}\underset{b}{C_6{H}_6}\underset{c}{C_6{D}_6}\underset{d}{C_6{T}_6}\underset{e}{C_6{H}_{5}Br}\underset{f}{C_6{H}_{5}N{R}_3^{+}}\underset{g}{C_6{H}_{5}NM{e}_2}$

• A. g > a > b > c > d > e > f
• B. g > b > c > d > e > a > f
• C. g > a > b = c = d > e > f
• D. g > a > b > c = d > e > f

Answer 1

The correct option is C g > a > b = c = d > e > f

Rate determining step of nitration does not involve (C - H) bond cleavage.
$\therefore C_6{H}_6=C_6{D}_6=C_6{T}_6$
Nitration is an electrophilic aromatic substitution reaction. The +I effect increases the rate of nitration whereas the -I effect decreases the rate of nitration.