Q.
The appropriate reagent for the transformation
is
A) $Zn(Hg),\ HCl$
B) $NH_{2}\ NH_{2},\ OH^{-}$
C) $H_{2}/Ni$
D) $NaBH_{4}$
Explanation
(b)
Hydrazine in the presence of strong base also reduces [image:12_image603.emf] group to [image:12_image604.emf] (Wolff-Kishner reduction). If there is any base sensitive groups, such as $–Br,\ - Cl$,etc in carbonyl compound, this reagent is not advised
[image:12_image605.emf]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.