Question: 
Which of the following reagent is suitable for the preparation of the product in the above reaction ?
$\mathrm{NaBH}_{4}$
$\mathrm{NH}_{2}-\mathrm{NH}_{2} / \mathrm{C}_{2} \mathrm{H}_{5} \stackrel{\ominus}{\mathrm{O}} \stackrel{\oplus}{\mathrm{Na}}$
$\mathrm{Ni} / \mathrm{H}_{2}$
$\operatorname{Red} \mathrm{P}+\mathrm{Cl}_{2}$
Correct Option: , 2
Solution:
To reduce the carbonyl groups into alkane wolf - kischner reduction is used, without affecting the double bond.
