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For the following anions: (i) , (ii) , (iii) . (Question implies adding (iv) based on options). The increasing order of nucleophilicity in a polar protic solvent would be:

  1. A
    (iv) > (iii) > (i) > (ii)
  2. B
    (i) > (iii) > (ii) > (iv)
  3. C
    (iv) > (ii) > (i) > (iii)
  4. D
    (ii) > (iv) > (i) > (iii)

Solution & Step-by-step Explanation

In polar protic solvents (like water or alcohols), nucleophilicity increases down the group because larger ions are less solvated and thus more available to donate electrons.Order: .Decreasing order: (i) > (iii) > (ii) > (iv).

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For the following anions: (i) , (ii) , (iii) . (Question implies adding (iv) based on options). The increasing order of nucleophilicity in a polar protic solvent would be:
A
(iv) > (iii) > (i) > (ii)
B
(i) > (iii) > (ii) > (iv)
C
(iv) > (ii) > (i) > (iii)
D
(ii) > (iv) > (i) > (iii)

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Organic ChemistryNucleophilicity

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