Question

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

• A. The contributing structures must have the same number of unpaired electrons.
• B. The contributing structures must have the 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 element and the negative charge on the electronegative element.

Answer 1

The correct option is C The contributing structures should be so written that unlike charges reside on atoms that are far apart.

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

While other statements are correct.

So, option C is correct.