Question

In the above sequence X can be

• A. $ext{H}_2/ ext{Ni}$
• B. $ext{NaBH}_4$
• C.
• D. Both (1) and (2)

Answer 1

Answer: (B)

$ext{NaBH}_4$

Answer 2

$\mathrm { NaBH } _ { 4 }$ and $\mathrm { LiAlH } _ { 4 }$ attacks only carbonyl group and reduce it into alcohol group. They do not attack on double bond.