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STD 11 - 8.4. Organic chemistry reaction mechanism — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 8.4. Organic chemistry reaction mechanism4 Marks
MCQ
The correct order of nucleophilicity is ..... .
  • A
    $F ^{-}> OH ^{-}$
  • B
    ${{H}_{2}}\underset{\scriptscriptstyle\centerdot\centerdot}{\ddot{O}} > OH ^{-}$
  • C
    $R \underset{\scriptscriptstyle\centerdot\centerdot}{\ddot{O}} H> RO ^{-}$
  • D
    $NH _{2}^{-}> NH _{3}$
✓

Answer

Nucleophilicity $\propto$ electro density on donor atom

$\propto$ size of donor atom (in gas)

$\propto \frac{1}{\text { EN of atom }}$ (for period)

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