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Organic Chemistry: Some Basic Principles and Techniques — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryOrganic Chemistry: Some Basic Principles and Techniques1 Mark
MCQ
Group showing strongest $+\ M$ effect :
  • A
    $−\text{NH}_2$
  • B
    $−\text{N(CH}_3)_2$
  • C
    $−\text{NHCH}_3$
  • ✓
    $−\text{O}^-$
✓

Answer

Correct option: D.
$−\text{O}^-$
$(-)$ charge is a stronger donor than lone pairs hence the strongest $+\ M$ effect is shown by $−\text{O}^-$.
Also, the other species does not contain any negative charge thus option $D$ is correct.

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