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Which of the following groups can neithe...

Which of the following groups can neither donate a pair of electrons in resonance

A

`-NO_(2)`

B

`-NO`

C

`-CH=CH_(2)`

D

`-CHO`

Text Solution

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The correct Answer is:
B, C
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AAKASH SERIES-ELECTRONIC EFFECTS AND REACTION INTERMEDIATES-ADDITIONAL PRACTICE EXERCISE (LEVEL - II LECTURE SHEET (ADVANCED) Straight ObjectiveType Questions)
  1. Which one of the following is least basic in character?

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  2. Select the least basic compound.

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  3. Basicity order of N in the following compound is :

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  4. Consider the following base (I) o-nitroaniline" " (II) m-nitroanil...

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  5. Select the most basic compound.

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  6. Which one of the following molecules has all the effects, namely induc...

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  7. Hyperconjugation is best described as:

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  8. Select the correct statement. (i) Delocalisation of sigma-electron i...

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  9. Arrange the following compounds in decreasing order of electrophilic s...

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  10. Resonance energy of benzene is

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  11. In which of the following pairs IInd compound has higher resonance ene...

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  12. In which of the following pairs IInd compound has less resonance energ...

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  13. Identify electron - withdrawing groups in resonance among the followin...

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  14. Which of the following groups can neither donate a pair of electrons i...

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  15. Which of the following group can participate in resonance with other s...

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  16. Which one of the following pairs of structures represent the phenomeno...

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  17. In which of the following pairs IInd compound has less resonance energ...

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  18. In which of the following is (are) the correct order of bond lengths :

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  19. Select the correct statement about product A.

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  20. Which of the following compounds is aromatic?

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