Match the alkyl halide reacting with reagent given in Column $\mathrm{I}$ with their respective substituted product given in  Column $\mathrm{II}$ and choose the correct option from the codes given below: 

Column $\mathrm{I}$	Column $\mathrm{II}$
$\left(\mathrm{a}\right)$ $\mathrm{KCN}$	$1)$ $\mathrm{RH}$
$\left(\mathrm{b}\right)$ $\mathrm{AgCN}$	$2)$ $\mathrm{RCN}$
$\left(\mathrm{c}\right)$ ${\mathrm{KNO}}_2$	$3)$  $\mathrm{RNC}$
$\left(\mathrm{d}\right)$ ${\mathrm{LiAlH}}_4$	$4)$ $\mathrm{R}-\mathrm{O}-\mathrm{N}=\mathrm{O}$

 

The major product of the following reaction is:

The reagent required for the following two step transformation are

The increasing order of reactivity of the following compounds towards reaction with alkyl halides directly is:

$\left(i\right)$

$\left(ii\right)$

$\left(iii\right)$

$\left(iv\right)$

The major product of the following reaction is:

The major product of the following reaction is: