નીચે આપેલા વિકલ્પોમાંથી સાચો જવાબ પસંદ કરો :
$\mathrm{C}_6 \mathrm{H}_5 \mathrm{COC}_6 \mathrm{H}_5 \xrightarrow{\mathrm{Zn}(\mathrm{Hg}) \& \text { conc. } \mathrm{HCl}} \mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{C}_6 \mathrm{H}_5$
$\mathrm{C}_0 \mathrm{H}_5 \mathrm{CHO} \xrightarrow[\mathrm{H}, \mathrm{O}]{\mathrm{CH}_3, \mathrm{Mgr}} \mathrm{C}_0 \mathrm{H}_5 \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_5$
$\mathrm{CH}_3 \mathrm{COCH}_2 \mathrm{COOC}_2 \mathrm{H}_5 \xrightarrow{\text { Nath }, \mathrm{H}^{+}} \mathrm{CH}_3 \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_2 \mathrm{COOC}_2 \mathrm{H}_5$
$C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Br\xrightarrow{NaCN}$ $X\xrightarrow[heat]{{{H}_{3}}{{O}^{+}}}Y\xrightarrow[{{H}^{+}}]{C{{H}_{3}}C{{H}_{2}}OH}Z$
$PhCHO + Ph \cdot CHO \xrightarrow[in\,\,{{D}_{2}}O]{NaOD} A + \begin{matrix} O \\ || \\ Ph-C-{{O}^{-}} \\ \end{matrix}$$\left( Ph\right.$ is $\left.- C _{6} H _{5}\right)$
$A.$ $CH _3 COOH$
$B.$ $F _3 C - COOH$
$C.$ $ClCH _2- COOH$
$D.$ $FCH _2- COOH$
$E.$ $BrCH _2- COOH$
નીચે આપેલા વિકલ્પોમાથી સાચો જવાબ પસંદ કરો.