Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles:

(a)

(b)

(c)

(i) Here, HO^- acts as nucleophile as it is an electron rich species i.e., it is a nucleus seeking species.

(ii) Here, CN^- acts as nucleophile as it is an electron rich species i.e., it is a nucleus seeking species.

(iii) Here, CH₃C⁺Oacts as electrophile as it is an electron deficient species.