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Which does not have conjugate system?...

Which does not have conjugate system?

A

`CH_(2)=CHCl`

B

`CH_(2)=CHCHO`

C

`CH_(3)CH=CH_(2)`

D

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The correct Answer is:
C
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RESONANCE-GENERAL ORGANIC CHEMISTRY-I-EXERCISE-1 PART-II
  1. Which of the following species cannot show resonance?

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  2. Resonance is not possible in:

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  3. Which does not have conjugate system?

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  4. The compound which is not resonance stabilised

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  5. Which of the following is not acceptable as resonating structure :

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  6. Which of the following pair is not pair of resonating structures ?

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  7. Which of the following structures are resonance structures ?

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  8. Among the given sets, which represents the resonating structure?

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  9. In which of the following resonance is not possible ?

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  10. Which one of the following is least stable resonating structure ?

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

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

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  13. The correct stability order of the following resonanating structures i...

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  14. Which is the most stable resonating structure ?

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  15. Which of the following group show +Meffect ?

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  16. Which of the following group show -m effect?

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

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

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  19. Which of the following group show -m and -I effect?

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  20. +m and +I both effects are shown by:

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