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A covalent molecule AB(3) has pyramidal ...

A covalent molecule `AB_(3)` has pyramidal structure. The number of lone pair and bond pair electrons in the molecule are respectively

A

0 and 4

B

3 and 1

C

1 and 3

D

2 and 2

Text Solution

Verified by Experts

The correct Answer is:
C
In general, a compound with formula `AB_3` is `sp^2` hybridised with triangular planar geometry. However, the given compound has pyramidal structure which is possible only when it has a lone pair of electrons. Thus `AB_3` has 3 bond pairs and one lone pair.
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