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Q-Compare the stability order of following resonating structure(see atachment)(I only have a confusion, str.3 have 2pi bonds so no. of resonating structure is more than str. 1 but str.1 is more stable than str.3.Why??please plssss clear mt doubt)

Q-Compare the stability order of following resonating structure(see atachment)(I only have a confusion, str.3 have 2pi bonds so no. of resonating structure is more than str. 1 but str.1 is more stable than str.3.Why??please plssss clear mt doubt)

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Grade:12th pass

1 Answers

Vikas TU
14149 Points
5 years ago

Structure one 1 more stable than structure 3 because in structur 3 we have a + sign on nitrogen attached to a triple bond. We know that a triple bond has huge electronegative character so it becomes less stable than strucutre 1.

 

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