In the given transformation,
Question:

In the given transformation, which of the following is the most appropriate reagent?

1. (1) $\mathrm{NaBH}_{4}$

2. $\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}$

3. $\mathrm{Na}, \mathrm{Liq.NH}_{3}$

Correct Option: , 2

Solution:

Solution not required