$(1)\,\,(CH_3)_3C-Br$ $(2)\,\,(C_6H_5)_2CH-Br$
$(3)\,\,(C_6H_5)_2C(CH_3)Br$ $(4)\,\,(CH_3)_2CH-Br$
$(5)\,\,C_2H_5Br$
$\begin{align}
(A)\,Nu+R-L\to \overset{\oplus }{\mathop{Nu}}\,-R+{{L}^{-}} \\
(B)\,R-{{L}^{\oplus }}\to {{R}^{\oplus }}+:L \\
\end{align}$

$R-Cl\xrightarrow{(i)\,\,KCN,(ii)\,LiAl{{H}_{4}}} $ નીપજ $A$
$R-Cl\xrightarrow{(i)\,\,AgCN,(ii)\,LiAl{{H}_{4}}} $ નીપજ $B $
નિપજો $A$ અને $B$ શું હશે ?


