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How many resonance structures can be dra...

How many resonance structures can be drawn for the nitrate ion, `NO_3^(-)`?

A

Four

B

Two

C

Three

D

zero or relatively small electronegativity difference

Text Solution

Verified by Experts

The correct Answer is:
C
The nitrate ion `(NO_3^(-))` is a resonance hybrid of three resonance structures which are almost identical:

All three O atoms are found to be identical, as are all three `N-O` bonds.
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