Q$\mathrm{.}14-)$ Which of the following groups would be ortho, para directors in electrophilic aromatic substitution?

I$)-CN$

II$)-S{O}_{3}H$

III$)-N{H}_2$

IV$)-OH$

V$)-Br$

A$)$ III$),($V$),$ and V$)$

B$)$ II$),$ III$),$ and V$)$

C$)$ I$),$ III$),$ and IV$)$

D$)$ I$),$ II$)$ and IV$)$

E$)$ II$),$ IV$)$ and V$)$

Q$\mathrm{.}15-)$ What kind of reagents required for the completion of the following reaction?

a$-)N{a}_{2}C{O}_3$ then $HCl$

b$-)C{O}_2$ then $H_{2}S{O}_4$

c$-)C{H}_{3}C\frac{l}{A}lC{l}_3$ then $KMn\frac{O_4}{O}H$

d$-)C{H}_3$COC$\frac{V}{A}lC{l}_3$ then $H_{2}S{O}_4$

Q$\mathrm{.}16-)$ Which of the following compounds are aromatic?

a$-)$ A$,$ B$,$ D are aromatic

b$-)$ C$,$E$,$D are aromatic

c$-)C$ and $B$ are aromatic

d$-)$ only $B$ is aromatic