Question

In which oxidation state, group $15$ elements act as Lewis base?

• A. $+5$
• B. $+4$
• C. $-3$
• D. $+3$

Answer 1

Answer: (C)

$-3$

Answer 2

Group 15 elements acts as Lewis base in - 3 oxidation state due to availability of lone pair of electrons on the central atom. This basic character of group 15 decreases down the group with an increase in the size of the central atom