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Q.

Lewis symbol of sulphite ion is given as 

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Identify correct statement about the structure?

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a

Doubly  bonded oxygen atom has -1 formal charge

b

Formal charge on S - atom has zero formal charge

c

Single bonded oxygen atom has zero formal charge

d

Formal charge on S - atom has -1 formal charge

answer is D.

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Detailed Solution

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Formal charge on S - atom:

Formal charge=Valence electrons-non-bonding electrons+bonding electrons2 Formal charge=6-0+122=6-6=0

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