Polyatomic Ions Group 5 and 6

What is the correct name for this polyatomic ion: PO₄^3–

• phosphorus tetroxide

• phosphate

• sulphate

• hydroxide

What is the correct formula for this polyatomic ion: sulfate?

• SO₃^2–

• HSO₄^–

• SO₄^2–

• CH₃COO^–

What is the correct formula for this polyatomic ion: hydrogen carbonate (bicarbonate)?

• HCO₃^–

• CO₃^2–

• CrO₄^2–

• CN^–

What is the correct formula for this polyatomic ion: carbonate?

• Cr₂O₄^-2

• CH₃COO^-

• CO₃^-2

• CN^-

What is the correct formula for this polyatomic ion: sulfite?

• S₂O₃^-2

• O₂^-2

• SO₄^-2

• SO₃^-2

HSO₄^-

• Sulfate

• Bisulfite

• Hydrogen Sulfate

• Bisulfate

What is the correct name for this polyatomic ion: O₂^-2

• hydroxide

• peroxide

• oxide

• hydride

What is the correct name for this polyatomic ion: AsO₄^-3

• Arsenide

• Silver oxide

• Arsenate

• Arsenic

What is the correct name for this polyatomic ion: C₂O₄^2-

• sulfate

• peroxide

• arsenate

• oxalate

What is the correct formula for this polyatomic ion: phosphite?

• AsO_4-

• PO₃^3-

• HPO_4-

• PO^-