P Block Elements Group 13 Question 4

Question 4 - 30 January - Shift 1

Lithium aluminium hydride can be prepared from the reaction of

(1) $LiCl$ and $Al_2 H_6$

(2) $LiH$ and $Al_2 Cl_6$

(3) $LiCl, Al$ and $H_2$

(4) $LiH$ and $Al(OH)_3$

Show Answer

Answer: (2)

Solution:

Formula: Preperation of $LiALH_4$

$8 LiH+Al_2 Cl_6 \longrightarrow 2 LiAlH_4+6 LiCl$