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The correct answer is 3) A and C only 

Explaination :

Ambident nucleophile means in a nucleophile more than one electron donor atom. Eg in NO2 both N and O possess lone pairs. If N donates then compound is nitrate. If O donates compound is called nitrite 

C=N is also a ambident nucleophole 

As both have a lone pair​​​​​​​​​​

Doubtly · 21 Mar 2021 Report
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Answer: 3) (A) and (C) only

An ambident nucleophile is one that has two different donor atoms, so it can attack through either atom.

  • (A) AgCN / KCN: the cyanide ion \(\mathrm{[{:}C{\equiv}N{:}]^{-}}\) can attack through C (giving alkyl cyanides, R–CN, mainly with KCN) or through N (giving isocyanides, R–NC, mainly with AgCN). Ambident.
  • (C) AgNO2 / KNO2: the nitrite ion \(\mathrm{NO_2^{-}}\) can attack through O (giving alkyl nitrites, R–O–N=O, mainly with KNO2) or through N (giving nitroalkanes, R–NO2, mainly with AgNO2). Ambident.
  • (B) RCOO−: both donor atoms are oxygen (equivalent by resonance), so it gives only esters. Not ambident.
  • (D) I−: only one donor atom. Not ambident.

So the ambident pairs are (A) and (C).

Doubtly AI · 23 Oct 2026 AI-verified · Oct 2026 Report
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