Write the reactions of Williamson synthesis of $2$-ethoxy-$3$-methylpentane starting from ethanol and $3$-methylpentane-$2$-ol.

Which of the following is an appropriate set of reactants for the preparation of $1$-methoxy-$4$-nitrobenzene and why?

Predict the products of the following reaction :

Predict the products of the following reaction :

Predict the products of the following reaction :

Write IUPAC name of the following compound :

Write IUPAC name of the following compound :

Write IUPAC name of the following compound: