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AP EAMCET202418 May 2024Morning ShiftChemistryGeneral Organic ChemistryActual

From the following identify the groups that exhibit negative resonance (-R) effect when attached to conjugated system ( array ccccc formyl & amino & alkoxy & cyano & nitro A & B & C & D & E array )

Options

  1. AA, C, E only
  2. BB, C, D only
  3. CA, D, E only
  4. DB, D, E only

Correct answer

C. A, D, E only

Step-by-step solution

Negative Resonance (-R): A group which withdraw electron density from a conjugated system. aligned & Amino NH ₂ + R & Alkoxy - OR + R aligned aligned & Cyano - CN - R & Nitro - NO ₂ - R aligned A , D , E group show -R effect.

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