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Why is nitro group a – R group and how is it not +R group (bcoz Nitrogen has a lone pair)?

Why is nitro group a – R group and how is it not +R group (bcoz Nitrogen has a lone pair)?

Grade:12

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
6 years ago
Although nitrogen has lone pair ,it gives two electron to oxygen atom and one electron to oxygen atom other.Now the nitrogen gains a positive charge and one oxygen atoms has negative charge to complete octet.So nitrogen as a whole has positive charge so it attracts electrons towards itself.See the resonance structure of nitrogen

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