(a) Account for the following: (i) Allyl chloride is hydrolysed more readily than n-propyl chloride. (ii) Isocyanides are formed when alkyl halides…

Account for the following :

Allyl chloride is hydrolysed more readily than n-propyl chloride.

Isocyanides are formed when alkyl halides are treated with silver cyanide.

Methyl chloride reacts faster with $\displaystyle \overline{\mathrm{O}} \mathrm{H}$ ion in $\displaystyle \mathrm{S}_{\mathrm{N}} 2$ reaction than t-butyl chloride.

Complete the following reactions by writing the structural formulae of 'A' and 'B' :

$\displaystyle \mathrm{CH}_{3} \mathrm{CH}=\mathrm{CH}_{2} \xrightarrow[\text { Peroxide }]{\mathrm{HBr}}$ 'A' $\displaystyle \xrightarrow{\text { aq. } \mathrm{KOH}}$ 'B'

$\displaystyle \underset{\mathrm{Cl}}{\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHCH}_{3}} \xrightarrow[\Delta]{\text { alc. } \mathrm{KOH}}$ 'A' $\displaystyle \xrightarrow{\mathrm{HBr}}$ 'B'

' A ' $\displaystyle \xrightarrow{\mathrm{Mg}} \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{MgCl} \xrightarrow[\mathrm{H}^{+}]{\mathrm{H}_{2} \mathrm{O}}$ (Main product)