Part C Resonance-Withdrawing and Donating Groups

Second-order resonance structures are like assistant resonance structures. They are not as important as regular tfirst-orderf resonance stmctures. but can help us make predictions in certain instances. 

Explain why the three second-order resonance structures shown in Model 8 are NOT considered important resonance structures. That is, why are they not as important as a regular, first-order resonance structure such as the one at the far left of Model 8 (Hint Count formal charges.) 

Add curved arrows to nitrobenzene at the top of the page showing how you would change it into one of the second-order resonance structures. Then use curved arrows to generate each of the subsequent second-order resonance structures. 

Composite Drawing of Nitrobenzene (a combination of all first- and second-order resonance stmctures) 

Review) In the first step of an electrophilic aromatic substitution (EAS) reaction the aromatic ring is acting as a nucleophile and reacting with the electrophile (E ). 

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