MCQ
Groups that can show both +M and -M effect:
  • A
    vinyl
  • B
    phenyl
  • C
    -NO
  • D
    All of these

Answer

  1. All of these

Explanation:

CH2​ = CH− and phenyl both contain double bonds, Since we know -NO, C=C both can show +M and -M effect both hence all of the above options are correct.

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