Question

$LiAl{H}_4$ is obtained by reacting an excess of ........ with an ethereal solution of $AlC{l}_3.$

• A. LiCl
• B. LiH
• C. Li
• D. LiOH

Answer 1

Answer: (B)

LiH

$LiAl{H}_4$ is obtained by reacting an excess of $LiH$ with an ethereal solution of $AlC{l}_3.$

The reaction is,

$4LiH+AlC{l}_3\to LiAl{H}_4+3LiCl$

by reacting $LiH$ in the presence of dry ether with $AlC{l}_3$.