Which of the following conditions is not correct for resonating structures?

Options

A. The contributing structures must have the same number of unpaired electrons.
B. The contributing structures slhould have similar energies.
C. The contributing structures should be so written that unlike charges reside on atoms that are far apart.
D. The positive charge should be present on the electropositive clement and the negative charge on the electronegative element.

Answer

C

Explanation

There is no restriction that resonating structures should have +ve and -ve charges on atoms that are far apart.