Write the structure of the compound whose IUPAC name is $4$-Chloro-$3$-ethylbutan-$1$-ol.

Classify the following compound as primary, secondary and tertiary alcohol:

${\mathrm{H}}_2\mathrm{C}=\mathrm{CH}-{\mathrm{CH}}_2\mathrm{OH}$

Classify the following alcohol as primary, secondary and tertiary alcohol:

Classify the following alcohol as primary, secondary and tertiary alcohol:

 Classify the isomers of alcohols of molecular formula ${\mathrm{C}}_5{\mathrm{H}}_{12}\mathrm{O}$ as primary, secondary and tertiary alcohols.

Write equation of the following reaction :

Nitration of anisole.