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  4. The number of lone pair of electrons on the central atoms of H2O, SnCl2, PCl3 and XeF2 respectively, are

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Q. The number of lone pair of electrons on the central atoms of $H_2O,\, SnCl_2,\, PCl_3$ and $XeF_2$ respectively, are

WBJEEWBJEE 2015Chemical Bonding and Molecular Structure

Solution:

The number of lone pairs of electrons on the central atoms of $H _{2} O , SnCl _{2}, PCl _{3}$ and $XeF _{2}$ are $2 , 1, 1$ and $3$ respectively.
image Number of lone pairs = 2
image Number of lone pair = 1
image Number of lone pair = 1
image Number of lone pairs = 3.