Chemistry-
General
Easy
Question
Azide ion 
exhibits an 
bond order of 2 and may be represented by resonance structures I, II and III given below 
Select the correct statement
- Structures I and II make greater contributions than III
- Structures II and III make greater contributions than I
- Structures I and III make greater contributions than II
- All three structures make equal contributions
The correct answer is: Structures II and III make greater contributions than I
Based on formal charges, II and III make greater contributions than I
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