The nitrite ion `NO_2^(-)` may be respresented by two major resonance forms, the lengths of the N-O bonds in this ion are expected to be

Options

A. the same as the length of N-O double bonds
B. the same as the length of N-O triple bond
C. between the lengths of N-O single and N-O double bonds
D. between N-O double and N-O triple bonds

Answer

C

Explanation

The two resonance structures are equivalent hence the N-O bond lengths must be identical. bar(O) - N = O iff O = N - bar(O)` (Equivalent resonance structures).