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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
Which one of these shows least $-\ I$ effect :
  • A
    $−\text{OH}_2^+​$
  • B
    $−\text{NH}_3^-​$
  • C
    ​$−\text{NO}_2​$
  • ✓
    $−\text{F}$
✓

Answer

Correct option: D.
$−\text{F}$
Since $+$ charge is more electronegative than neutral atom therefore correct order is
$−\text{OH}_2^+​ ​> −\text{NH}_3^-​ > −\text{NO}_2​ > −\text{F}$. Hence least $−\text{I}$ effect is shown by $−\text{F}$.

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