The number of lone pair of electrons on ...

The number of lone pair of electrons on the central atoms of `H_2O, SnCl_2, PCl_3 and XeF_2` respectively, are

A

2,1,1,3

B

2,2,1,3

C

3,1,1,2

D

2,1,2,3

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The correct Answer is:

A

`H_2 underset(* *)overset(* *) O rArr` No. of lone pairs = 2
`Cl - overset(* *)Sn - Cl rArr` No. of lone pairs = 1

`rArr ` No. of lone pairs = 1
`F - underset(* *)overset(* *)X overset(*)e to F rArr ` No. of lone pairs = 3

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