Question

Which of the following is a nucleophile?

• A. $B{H}_3$
• B. $N{H}_3$
• C. $AlC{l}_3$
• D. All of these

Answer 1

Answer: (B)

Nucleophiles (ie, nucleus loving) are the species that have atleast one lone pair of electrons for donation, ie, they can also be called Lewis bases. Among the given, $B{H}_3$ and $AlC{l}_3$, being electron deficient, behave like electrophiles while $\ddot{N}{H}_3$, due to the presence of a lone pair over $N$, is a nucleophile