Question

Which of the following are reducing agents?

• A. Diborane
• B. $LiB{H}_4$
• C. $LiAl{H}_4$
• D. $NaB{H}_{3}CN$

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A Diborane
B $LiB{H}_4$
C $LiAl{H}_4$
D $NaB{H}_{3}CN$

Diborane is used to reduce carboxylic acids. It is also used in hydroboration of alkenes. The other popular reducing agents are $LiB{H}_4$ and $LiAl{H}_4$. $NaB{H}_{3}CN$ is very useful to reduce imines and iminium ions to the corresponding amines.