Question

(a) Explain why ? bond resonance structures are ignored whenthere are ? bonds

and nonbonding electrons in a molecule. (b) Use curved arrownotation to draw all

reasonable resonance structures for the structures shown below.(c) Indicate and

explain which structure is the principal structure andrank/explain the contributions of

the minor structures. (d) Briefly explain what the minorresonance structure indicates

about the molecule.

2. (a) For the followingresonance hybrid structures draw the contributingresonance

structures. (b) Explain what is useful about drawing eachresonance hybrid structure. (c)

Explain what is not useful about drawing each resonance hybridstructure.

3. Explain why the structuresbelow do not have ? resonance structures or have

incorrect curved arrow notation.

Explain why ? bond resonance structures are ignored when there are ? bonds and nonbonding electrons in a molecule. Use curved arrow notation to draw all reasonable resonance structures for the structures shown below. Indicate and explain which structure is the principal structure and rank/explain the contributions of the minor structures. Briefly explain what the minor resonance structure indicates about the molecule. For the following resonance hybrid structures draw the contributing resonance structures. Explain what is useful about drawing each resonance hybrid structure. Explain what is not useful about drawing each resonance hybrid structure. Explain why the structures below do not have ? resonance structures or have incorrect curved arrow notation.

Show transcribed image text Explain why ? bond resonance structures are ignored when there are ? bonds and nonbonding electrons in a molecule. Use curved arrow notation to draw all reasonable resonance structures for the structures shown below. Indicate and explain which structure is the principal structure and rank/explain the contributions of the minor structures. Briefly explain what the minor resonance structure indicates about the molecule. For the following resonance hybrid structures draw the contributing resonance structures. Explain what is useful about drawing each resonance hybrid structure. Explain what is not useful about drawing each resonance hybrid structure. Explain why the structures below do not have ? resonance structures or have incorrect curved arrow notation.