Question

$LiAl{H}_4$ is used as :

• A. An oxidizing agent
• B. A reducing agent
• C. A mordant
• D. A water softener

Answer 1

Answer: (B)

$LiH+AlC{l}_3\to (Al{H}_3{)}_n\underset{LiH}{\overset{\text{excess}}{\to }}Li[Al{H}_4]$ Lithuim aluminium hydride is a most useful organic reducing agent. It reduces functional groups but does not attack double bonds.