Question

what happen when BF3 react with ammonia

Answer 1

F3BNH3 is formed (Lewis acid - base reaction

Answer 2

When $BF_3$ reacts with Ammonia, a dipolar bond is formed.

Explanation:

• Boron trifluoride is a gas which is toxic with no colour and produces pungent smell and is a Lewis acid and has the composition as $BF_3$.

• A substance which can accept or takes an electron pair to form a bond or octet configuration is a Lewis acid.

• Ammonia is also a gas which produces pungent smell and is of no colour and has the composition as $NH_3$.

• It is used as fertilisers in the fields. It is a Lewis base which can donate an electron pair.

• When both $BF_3$ and $NH_3$ are reacted together the $NH_3$ loses an electron pair and the $BF_3$ gains this electron pair and a dipolar bonding takes place between them.

       $BF_3+ NH_3\rightarrow F_3BNH_3$.

Learn more about ammonia

Difference between with chemical test

a) ammonia and hydrogen chloride

b) chlorine and nitrogen dioxide

c) sulphur dioxide and chorine

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Why alkanamines are stronger bases than ammonia?

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