1.

Which of the following molecule in its valence shell has three bond pairs of electrons and one lone pair of electron

Answer»

`NH_(3)`
`H_(2)O`
`BF_3`
`CO_(2)`

SOLUTION :`underset((NH_(3)))({:(""ddotN),("/|\"),("HHH"):}) "" underset((H_(2)O))({:(""ddot(O)),(" /\"),("HH"):}) "" underset((BF_(3)))({:("B"),(" / |\"),("FFF"):})underset((CO_(2)))(O=C=O)`


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