In the reaction \( \mathrm{LiH}+\mathrm{AlH}_{3} \rightarrow \mathr...

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In the reaction \( \mathrm{LiH}+\mathrm{AlH}_{3} \rightarrow \mathrm{LiAlH}_{4}, \mathrm{AlH}_{3} \) and \( \mathrm{LiH} \) acts as :
(a) Lewis acid and Lewis base
(b) Lewis base and Lewis acid
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(c) Bronsted base and Bronsted acid
(d) None of these
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