Q32 / 180 · AIIMS 2015 · Chemistry

Assertion : $\mathrm{CN}^{-}$ion is an ambident nucleophile. Reason : Nucleophiles are electron rich species.

  • A
    If both assertion and reason are true and reason is the correct explanation of assertion.
  • Correct answer
    B
    Ifboth assertion and reason are true but reason is not the correct explanation of assertion.
  • C
    If assertion is true but reason is false.
  • D
    If both assertion and reason are false.

Solution

Nucleophilic species which have more than one site of reaction are called ambident nucleophiles. $$ : \overline{\mathrm{C}} \equiv \mathrm{N}: \longleftrightarrow: \mathrm{C}=\ddot{\mathrm{N}} \text { : } $$

Hence, the correct answer is option: 'B'.

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