The cyanide ion $(CN^-)$ is:

The correct statement regarding electrophile is

Which of the following is an electrophile?

Write a note on nucleophiles.

Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles:
$(a) \ CH_{3}COOH + \mathbf{HO^{-}} \to CH_{3}COO^{-} + H_{2}O$
$(b) \ CH_{3}COCH_{3} + \mathbf{CN^{-}} \to (CH_{3})_{2}C(CN)OH$
$(c) \ C_{6}H_{6} + \mathbf{CH_{3}C^{+}=O} \to C_{6}H_{5}COCH_{3} + H^{+}$

Which of the following is not an electrophile?