Question

The Group 15 (VA) element that forms stable salts containing $M^{3+}$ ions :

• A. Sb, Bi
• B. N, P
• C. P, As
• D. As, Sb

Answer 1

The correct option is A Sb, Bi

As we move down the group,
due to inert pair effect lower oxidation of elements become more stable so Sb, Bi forms stable salts containing $M^{3+}$ ions.