The products formed in the reaction of cumene with ${\mathrm{O}}_2$ followed by treatment with dil. $\mathrm{HCl}$ are:

The major product of the following reaction is:

The major product of the following reactions is:

Arrange the following compounds in order of decreasing acidity.

The most suitable reagent for the conversion of $\mathrm{R}-{\mathrm{CH}}_{\mathrm{2}}-\mathrm{OH}\stackrel{}{\to }\mathrm{R}-\mathrm{CHO}$ is _____.

In the presence of light perchlorodiethyl ether is obtained from diethyl ether.

${\left({\mathrm{C}}_2{\mathrm{H}}_5\right)}_2\mathrm{O}\stackrel{{\mathbf{Cl}}_{\mathbf{2}}}{\to }{\left({\mathrm{CCl}}_2{\mathrm{CCl}}_3\right)}_2\mathrm{O}$

The mechanism through which this reaction proceed.