Identify the products $[A]$ and $[B]$,respectively in the following reaction:

Compound $I$ is heated with Conc. $HI$ to give a hydroxy compound $A$ which is further heated with $Zn$ dust to give compound $B$. Identify $A$ and $B$.

Which of the following is $NOT$ a dihydric alcohol?

The action of diazomethane on phenol liberates which of the following gases?

Picric acid is (at $25\,^{\circ}C$)

Phthalic acid reacts with resorcinol in the presence of concentrated $H_2SO_4$ to give