question_answer 1)

Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles: (i) \[C{{H}_{3}}COOH+H{{O}^{-}}\xrightarrow{{}}C{{H}_{3}}CO{{O}^{-}}+{{H}_{2}}O\] (ii) \[C{{H}_{3}}COCH+\mathbf{C}{{\mathbf{N}}^{\mathbf{-}}}\xrightarrow{{}}{{(C{{H}_{3}})}_{2}}C(CN)OH\] (iii) \[{{C}_{6}}{{H}_{6}}+\mathbf{C}{{\mathbf{H}}_{\mathbf{3}}}\overset{\mathbf{+}}{\mathop{\mathbf{CO}}}\,\xrightarrow{{}}{{C}_{6}}{{H}_{5}}COC{{H}_{3}}\]

Answer:

(i)\[H{{O}^{-}}\](nucleophile) (ii) \[C{{N}^{-}}\](nucleophile) (iii) \[C{{H}_{3}}\overset{+}{\mathop{CO}}\,\](electrophile)