નીચેની શ્રેણીબધ્ધ પ્રકિયાનો અંતિમ નીપજ કયો હશે ?

$CH \equiv CH$ $ \xrightarrow {CH_3MgBr}$ $ \xrightarrow {Co_2/H_3O^+}$ $ \xrightarrow {HgSO_4/H_2SO_4}$ $ \xrightarrow {Ag_2O,\Delta}$ $?$

Question

નીચેની શ્રેણીબધ્ધ પ્રકિયાનો અંતિમ નીપજ કયો હશે ?

$CH \equiv CH$ $ \xrightarrow {CH_3MgBr}$ $ \xrightarrow {Co_2/H_3O^+}$ $ \xrightarrow {HgSO_4/H_2SO_4}$ $ \xrightarrow {Ag_2O,\Delta}$ $?$

A$\begin{array}{*{20}{c}}
{O\,\,\,\,\,} \\
{||\,\,\,\,\,\,} \\
{C{H_3} - C - COOH}
\end{array}$
B$CH_2(COOH)_2$
C$\begin{array}{*{20}{c}}
{O\,\,} \\
{||\,\,} \\
{C{H_3} - C - CHO}
\end{array}$
D$\begin{array}{*{20}{c}}
{O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - C - C{H_2}COOH}
\end{array}$

Diffcult

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Solution

b
$CH \equiv CH$ $ \xrightarrow {CH_3MgBr}$ $CH \equiv C-MgBr$ $ \xrightarrow {Co_2/H_3O^+}$ $CH \equiv C→— COOH$ $\begin{align}
& \begin{matrix}
\,\,\,\,\,\,OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
CH=CH-COOH \\
\end{matrix} \\
\\
\end{align}$ $\rightleftharpoons $ $OHC-CH_2-COOH$ $ \xrightarrow {Ag_2O,\Delta}$ $HOOC-CH_2-COOH$ (મેલોનીક એસિડ)

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