KVPY PROBLEMS (PREVIOUS YEARS)

The major product of the following reaction is

Phenol on treatment with dilute ${\mathrm{HNO}}_3$ gives two products $\mathrm{P}$ and $\mathrm{Q} . \mathrm{P}$ is steam volatile but $\mathrm{Q}$ is not. $\mathrm{P}$ and $\mathrm{Q}$ are, respectively

The compound which reacts with excess bromine to produce $2,4,6$-tribromophenol, is:

In the following reaction sequence

$\mathrm{X}$ and $\mathrm{Y}$ are, respectively

Reaction of aniline with ${\mathrm{NaNO}}_2+$ dilute $\mathrm{HCl}$ at $0°\mathrm{C}$ followed by reaction with $\mathrm{CuCN}$ yields.

In the reaction

$\mathrm{x}, \mathrm{y} \text{and} \mathrm{z}$ are

$\mathrm{X}, \mathrm{Y}$ and $\mathrm{Z}$ in the following reaction sequence are

Among the following.

I 

II 

III 

IV 

V 

The antiaromatic compounds are