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Why BF_(3) forms as an adduct with ammonia ? |
Answer» Solution :`BF_(3)` is an electronsdeficientcompounds sincethe VALENCE shell of Bhas only six electrons. It needs two moreelectronsto complete its octet.On the other HAND, NIN `NH_(3)` has a lone pairof electronswhich it can donate to B to forma coordinate bond. Thus, `BF_(3)` FORMS an adduct with ammonia. 
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