# Resonance Worksheet

Resonance can be defined as a way of defining delocalized electons with certain polyatomic ions and molecules, where bonding can’t be epressed by Lewis formula. Resonance is also a key component of valence bond theory.

Some questions and their answers related to resonance are listed below:

Questions:

1. Which is not true about resonance:

(a) Here arrangement of atoms is same.

(b) Resonating structures are shown by $(\leftrightarrow)$

(c) Resonating structures differ in $e^-$ distribution

(d) Resonance decreases stability

2. Which in not correct resonating structure of CO:

3. Canonical structures are possible for:
(a) $O_3$

(b) $H_2O$

(c) $CH_4$

(d) $NH-3$

4. Which is most stable structure of $CO_2$
(a) O = C = O

(b) $\overset{-}{O}- C = \overset{+}{O}$

(c) $\overset{-}{O}- \overset{+}{C} = C$

(d) All are equally stable