Question

Choose the correct pair of ions with respect to their name.

• A. ${\mathrm{SO}}_4^{2-}$
• B. Sulphide
• C. Calcium
• D. ${\mathrm{Ca}}^{2+}$
• E. ${\mathrm{CO}}_3^{2-}$
• F. $S^{2-}$
• G. Sulphate
• H. Carbonate

Answer 1

\N