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Q.

In the reaction LiH+AlH3⟶LiAlH4 , AlH3 and LiH act as

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a

Lewis base and Lewis acid

b

Bronsted base and Bronsted acid

c

Lewis acid and Lewis base

d

None of these

answer is A.

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Detailed Solution

LiH → Li+ + H− 

AlH3​ + H− → AlH4−​

LiH is lone pair donar and AlH3​ is lone pair acceptor.

So according to Lewis theory, AlH3​ acts as an acid and LiH acts as a base.

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