MCQ
Total number of hydroxyl groups present in a molecule of the major product $P$ is. . . . . . . .


- ✓$6$
- B$8$
- C$9$
- D$10$


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$(A) i)$ Lindlar's catalyst, $H _2$; $ii$) $SnCl _2 / HCl$; iii) $NaBH _4$; iv) $H _3 O ^{+}$
$(B) i)$ Lindlar's catalyst, $H _2$; $ii$) $H _3 O ^{+}; iii)$ $SnCl _2 / HCl$; iv) $NaBH _4$
$(C) i)$ $NaBH _4; ii)$ $SnCl _2 / HCl; $iii$)$ $H _3 O ^{+}; iv)$ Lindlar's catalyst, $H _2$
$(D) i)$ Lindlar's catalyst, $H _2$; $ii$) $NaBH _4; iii)$ $SnCl _2 / HCl; iv)$ $H _3 O ^{+}$
$\begin{array}{*{20}{c}}
{{H_2}N - CH - CH - CHO} \\
{\,|\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,} \\
{HOOC\,\,\,\,\,\,\,\,\,\,COOH\,\,\,\,\,}
\end{array}$