Question

In $[N{H}_3\to B{F}_3]$ the nucleophile is:

• A. $N{H}_3$
• B. $B{F}_3$
• C. Both
• D. neither of them

Answer 1

Answer: (A)

$N{H}_3$

Nucleophile is the electron rich species and $N{H}_3$ has 1 lone pair on nitrogen.
While $B{F}_3$ is electron deficient species.