How many acceptable and equivalent resonance structures can be drawn for NO₃^-? A) 2 B) 3 C) 4 D) 1 E) 0

Question

Quizplus · Accepted Answer

The molecule described by the given notation (NO₃^-) is nitric oxide (NO). Nitric oxide has two resonance structures: one with a double bond between the nitrogen and oxygen, and the other with a single bond and a charge separation (nitrogen bearing a positive charge and oxygen bearing a negative charge). This makes the correct answer 2, which corresponds to choice B.

How Many Acceptable and Equivalent Resonance Structures Can Be Drawn