Question

What is the Rules for Writing Resonance Structures?

Answer

Rules for Writing Resonance Structures - (i) The overall charge of the system must remain the same. (ii) The bonding framework of a molecule must remain intact. (iii) The greater the number of covalent bonds, greater is the contribution of that resonating structure. (iv) Each structure must have the same number of unpaired electrons. (v) The contributing structures should all have similar energies. This rule may be illustrated by taking the example of benzene.