Question

$LiAlH_4$ is used as :

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

Answer 1

Answer: (B)

$LiH + AlCl_3 \rightarrow (AlH_3)_n \xrightarrow[LiH]{\text{excess}} Li[AlH_4]$ Lithuim aluminium hydride is a most useful organic reducing agent. It reduces functional groups but does not attack double bonds.