Question

Which of these is a polyatomic ion?

${{SO}_4}^{2-}$, ${{NO}_3}^{-}$, ${{CO}_3}^{2-}$

• A.
• B. (NO₃)^-1
• C. (CO₃)^-2
• D. All of the given options are correct.

Answer 1

The correct option is D

All of the given options are correct.

Polyatomic. Poly- stands for many. Poly-atomic means more than one atom or many atoms.

${{SO}_4}^{2-}$, ${{NO}_3}^{-}$, ${{CO}_3}^{2-}$

How many of these ions have more than 1 atom? All of them.