$C{H_3}C{H_2}Br\, + \,A{g^ + }$ $ \rightleftharpoons $ ${[C{H_3}C{H_2}...Br...Ag]^ + }$
$\xrightarrow[{( - \,AgBr)}]{{slow}}C{H_3}CH_2^ + $ $\xrightarrow[{from\,\,{H_2}O}]{{O{H^ - }}}C{H_3}C{H_2}OH$
$\begin{array}{*{20}{c}}
{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - CH - C{H_2} - C{H_2} - OH}
\end{array}\,$ ${\xrightarrow[{Pyridine{\kern 1pt} cold}]{{Cr{O_3}}}}$ નીપજ