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Question

Which of the following are ambident nucleophiles?


A

Br

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B

CN

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C

NO2

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D

Both (B) and (C)

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Solution

The correct option is D

Both (B) and (C)


Explanation for the correct option:

Option (D) Both (B) and (C)

  • Ambident nucleophiles are nucleophiles with two nucleophilic sites.
  • Because both atoms of NO2- and CN- can donate an electron, they are both ambident nucleophiles.
  • NO2- can donate electrons via nitrogen and oxygen atom while CN- can donate electrons via nitrogen and carbon atom

Explanation for the incorrect options:

(A) Br

There aren't two nucleophilic sites on it. Thus, this is the wrong choice.

Therefore, Option (D), Both (C) and (D) is correct.


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