$C{H_3} - C{H_2} - \mathop S\limits_{ \bullet \,\, \bullet }^{ \bullet \,\, \bullet } - \mathop C\limits^* {H_2} - C{H_2} - Br\xrightarrow{{HOH}}[X]$
$[X]$ will be :
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(Molal depression constant for water is $1.80\, K\, kg\,mol ^{-1}$ and molar mass of $KCl$ is $74.6 \,g\, mol ^{-1}$ )
$\begin{array}{*{20}{c}}
O \\
{||} \\
{C{H_3} - C - N{H_2}}
\end{array}$ $\xrightarrow{{KOBr}}$ $(A)$
$\begin{array}{*{20}{c}}
O \\
{||} \\
{C{H_3} - C - N{H_2}}
\end{array}$ $\xrightarrow{{LiAlH_4}}$ $(B)$
| Column $I$ | Column $II$ |
| $(a) \frac{\Delta P }{ P ^{\circ}{ }_A}$ | $(i) \ \frac{\Delta T _{ b }}{ m }$ |
| $(b) \ K_b$ | $(ii) \ mol$ fraction of solute |
| $(c) \ i$ | $(iii) \ \frac{\Delta T _{ f }}{ m }$ |
| $(d) \ K_f$ | $(iv)$ Ratio of observed molar mass to actual molar mass |