The carbolic acid reacts with nitrating mixture to give _____.

In the reaction:

Phenol $\stackrel{\mathrm{NaOH}}{\to }(\mathrm{A}) \underset{140º\mathrm{C}}{\stackrel{{\mathrm{CO}}_{\mathrm{2}}+\mathrm{HCl}}{\to }} (\mathrm{B})$. Identify $\mathrm{B}$.

Reaction of phenol with chloroform in presence of dilute sodium hydroxide finally introduces which one of the following functional group?

Phenol on distillation with zinc dust gives _____.

In Friedel-Craft's acylation, besides ${\mathrm{AlCl}}_{\mathrm{3}}$, the other reactants are ______.

Which of the following is a simple ether?

Name of ${({\mathrm{CH}}_{\mathrm{3}}\mathrm{)}}_{\mathrm{2}}\mathrm{CH}-{\mathrm{CH}}_{\mathrm{2}}-{\mathrm{CH}}_{\mathrm{2}}-{\mathrm{CH}}_{\mathrm{3}}$ is ______.

The compound which is not isomeric with diethyl ether is ______.

The molecular formula of compound is ${\mathrm{C}}_{\mathrm{4}}{\mathrm{H}}_{\mathrm{10}}\mathrm{O}$, it represents three isomers, then the type of isomerism is _____.