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Which of the following statement is correct for ion

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Sum of all formal charge is +1

Formal charge on nitrogen atom is +1

Formal charge on one of the oxygen atom is -2

Average formal charge on oxygen atom is -2/3

answer is C.

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Detailed Solution

Formal charge=valence electrons –non bonding electrons –Bonding elecrons/2

For Nitrogen=5-0-8/2=+1

For single bonded oxygen = 6 - 6 – 2/2 = -1

For double bonded oxygen = 6 - 4 – 2/4 = 0

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