Lithium aluminium hydride can be prepared from the reaction of

Options

A $LiCl$ and ${Al}_{2}{H}_{6}$
B $LiH$ and ${Al}_{2}{Cl}_{6}$
C $LiCl, Al$ and ${H}_{2}$
DLiH $and$ Al{ $\left(OH\right)}_{3}$

Correct answer

B. $LiH$ and ${Al}_{2}{Cl}_{6}$

Step-by-step solution

Lithium aluminium hydride can be prepared by the reaction of dimer of aluminium trichloride and lithium hydride by the below reaction with a high yield:

8LiH + {Al}_{2}{Cl}_{6} ⟶ 2{LiAlH}_{4} + 6LiCl

Lithium aluminium hydride is extensively used for reduction of organic compounds.

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