Q.

Consider the following molecules:What is the formal charge on C in CS2 and in CO32-

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a

0, -2

b

0, 0

c

+2, -2

d

-1, -1

answer is B.

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Detailed Solution

Formal charge on C atom of CS2Formal charge on an atom in a Lewis structure= [Total number of valence electrons in the atom] - [Total number of non-bonding or lone pair e-] - 1/2 [Total number of bonding (shared electrons)]=4−0−12×8=0Similarly formal charge on C atom of CO32- is zero.
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Consider the following molecules:What is the formal charge on C in CS2 and in CO32-