InterviewSolution
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InterviewSolution
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`BF_3` and `NH_3` combine readily because of the formation ofA. a dative bondB. an ionic bondC. a hydrogen bondD. a covalent bond |
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Answer» Correct Answer - A Although boron trifluoride `(BF_3)` is stable, it has a tendency to pick up an unshared electron pair from an atom in another compound, as shown by its reaction with ammonia: `F-underset(F)underset(|)overset(F)overset(|)B+:underset(H)underset(|)overset(H)overset(|)NrarrF-underset(F)underset(|)overset(F)overset(|)(B^(-))-^(+)N-H` The formation of this compound satisfies the octet rule for B, N, and F atoms. The `B-N` bond in the above compound is a dative bond because both electrons for sharing are contributed by the N atom. |
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