Lewis Theory#!#resonance #!#vbt

Introduction to chemical Bond,Lewis theory for ionic and covalent compound or octet rule

Resonance Theory

LDS OF HNO2, HNO3, H2S, SOCl2 || Limitation OF Lewis Theory (Hypovalent, Hypervalent, Odd electron molecules) || Valence Bond Theory (VBT) || Main Postulates OF VBT

Lewis theory for covalent compounds, exceptions of lewis theory

Lewis theory of octet does not explain :

Which of the following pairs of Lewis structure represent resonance contributor to the species?

How does Lewis theory explain the acidic character of CO_(2) ?