Question

Amongst the trihalides of nitrogen which one is the least basic?

• A. $N{F}_3$
• B. $NC{l}_3$
• C. $NB{r}_3$
• D. $N{I}_3$

Answer 1

Answer: (A)

$N{F}_3$ is the least basic among the trihalides. It is due to highest negative inductive effect $(-I)$ of F in comparision to other halogen atom.