In the reaction $\mathrm{NH}_3+\mathrm{BF}_3 \rightarrow \mathrm{F}_3 \mathrm{BNH}_3, \mathrm{BF}_3$ is

Question

In the reaction $\mathrm{NH}_3+\mathrm{BF}_3 \rightarrow \mathrm{F}_3 \mathrm{BNH}_3, \mathrm{BF}_3$ is, Lewis acid, Lewis base, Neither Lewis acid nor Lewis base, Both Lewis acid and Lewis base

MARKS App · Accepted Answer

$\mathrm{BF}_3$ accepts an electron pair from $\mathrm{NH}_3$, so it is a Lewis acid. The correct answer is option 1: Lewis acid.

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