Which of the following statements about ions and ionic compounds are true
CHEMISTRY · Single correct · CBSE · Chemistry · Atoms and Molecules · Atoms and Molecules
Problem
Which of the following statements about ions and ionic compounds are true? I. Nitrogen can form a 3− ion. II. Potassium can form a cation. III. The formula for aluminium chloride is AlCl2.
(A) I and II only
(B) I and III only
(C) II and III only
(D) I, II and III