The structure of intermediate $A$ in the following reaction is

Which is the final product of the Reimer-Tiemann reaction?

What will be the product $X$ in the following reaction?

Sodium phenoxide when heated with $CO_2$ under pressure at $125\,^{\circ}C$ yields a product which on acetylation produces $C$. The major product $C$ would be

What is the product formed when phenol reacts with $Br_2$ in $CCl_4$ at low temperature?

What is the increasing order of boiling points for the following alcohols?
$I.$ $1, 2-$dihydroxybenzene
$II.$ $1, 3-$dihydroxybenzene
$III.$ $1, 4-$dihydroxybenzene
$IV.$ hydroxybenzene