AP EAMCET Engineering 2011 Solved Paper

Section: Chemistry

Question : 76 of 160

Marks: +1, -0

Solution:

Formal charge = Total number of valence electrons in the free atom - [ Total number of non-bonding (lone pair)electrons ]

-\frac{1}{2}

[ Total number of bonding (shared) electrons ]

on.....

the end

N

atom marked 1 .

=5-4-\frac{1}{2}(4)

=5-4-2=-1

the central N atom marked 2 ,

=5-0-\frac{1}{2}(8)

=5-4=+1

the end

O

atom,

=6-4-\frac{1}{2}(4)

=6-6=0

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