Polyatomic Ion Practice

What is the formula for the polyatomic ion Acetate?

• NH₄⁺

• CH₃COO⁻ or C₂H₃O₂⁻

• CN⁻

• SO₄²⁻

Which of the following represents the polyatomic ion Chromate?

• CrO₄²⁻

• Cr₂O₇²⁻

• CO₃²⁻

• PO₄³⁻

Which of the following is the correct formula for the polyatomic ion Sulfate?

• SO₃²⁻

• SO₄²⁻

• S₂O₈²⁻

• SO₂²⁻

What is the formula for the polyatomic ion Phosphate?

• PO₃³⁻

• PO₄³⁻

• P₂O₇⁴⁻

• P₄O₁₀⁴⁻

What is the derived ion name for the base ion Carbonate (CO3^2-) when a hydrogen ion is added?

• Bicarbonate

• Sulfate

• Nitrate

• Phosphate

What is the formula for the derived ion Biphosphate or hydrogen phosphate?

• HCO3^-

• HPO4^2-

• HPO3^2-

• HPO4^3-

What is the correct formula for the derived ion Thiosulfate?

• SO3^2-

• S2O3^2-

• SO4^2-

• S2O4^2-

What is the correct formula for the ion Perchlorate?

• ClO4^-

• ClO3^-

• ClO2^-

• ClO^-

Which of the following is the correct formula for the Hydroxide ion?

• H+

• OH

• OH-

• OH2-

What is the chemical formula for the polyatomic ion Ammonium?

• NH₄⁺

• NO₃⁻

• OH⁻

• H₃O⁺