Chemical BondingHard

Question

The molecule which has pyramidal shape is :

Options

A.PCl3
B.SO3
C.CO32-
D.NO3-

Solution

In PCl3, P is sp3 - hybridised with one sp3 h.o. occupied by lone pair.
        
SO3 has planar structure and S-atom is sp2 - hybridised. NO3- and CO32- also have plabar and symmetrical structure with sp2 - hybridised central atom.

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