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Which of the following species exists:...

Which of the following species exists:

A

B

C

D

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The correct Answer is:
A
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RESONANCE ENGLISH-GENERAL ORGANIC CHEMISTRY-I-EXERCISE-1 PART-II
  1. During delocalization, which statement is INCORRECT :

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  2. Resonance structure of a molecule should not have

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  3. Which of the following species exists:

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  4. Resonance is not possible in

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  5. Which does not have conjugate system?

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  6. The compound which is not resonance stabilised

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  7. Which of the following pairs represents resonating structures ?

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  8. Which of the following pairs represents resonating structures ?

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  9. Which of the following pairs represents resonating structures ?

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  10. Which of the following pairs represents resonating structures ?

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  11. Resonance is not possible in

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  12. Which of the following is least stable ?

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  13. Which of the following resonating structure is the least contributing ...

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  14. HNCO (isocyanic acid) has following resonating structures : underset...

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  15. Arrange the following resonating structures in order of increasing sta...

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  16. The most stable resonating structure is

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  17. Which of the following groups exerts +m effect when attached with benz...

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  18. Which of the following groups exerts +m effect when attached with benz...

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  19. Which of the following group show +M and -l effect?

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  20. Which of the following group shown +mgt - I effect?

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