Question

A nucleophile is the species that should have:

• A. a pair of electrons to donate
• B. a positive charge
• C. a negative charge
• D. electron deficient species

Answer 1

Answer: (A), (C)

a negative charge
a pair of electrons to donate

A nucleophile in the species that may be negatively charged or neutral (carry lone pairs of electrons). Being electron-rich, they act as Lewis bases. A nucleophile attacks the substrate molecule at the site of the lowest electron density.

Hence, the correct options are $A$ and $C$