Group 2 compounds and their uses

Group 2 compounds and their uses Quiz

Spec 3.2.2 · AQA A-Level Chemistry: Quiz

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  1. 1. Which Group 2 sulfate is insoluble in water?

    • A. MgSO₄
    • B. CaSO₄
    • C. BaSO₄
    • D. Mg(OH)₂

  2. 2. Why is dilute hydrochloric acid added before barium chloride in the sulfate test?

    • A. To remove carbonate ions that would give a false positive
    • B. To dissolve barium sulfate
    • C. To increase the solubility of barium chloride
    • D. To make the precipitate yellow

  3. 3. Which statement about Group 2 hydroxides is correct?

    • A. Solubility decreases down the group
    • B. Mg(OH)₂ is the most soluble
    • C. Solubility increases down the group
    • D. All are insoluble

  4. 4. Which reaction removes SO₂ from flue gas?

    • A. Mg + SO₂ → MgS
    • B. BaSO₄ → BaO + SO₃
    • C. Ca(OH)₂ + HCl → CaCl₂ + H₂O
    • D. CaO + SO₂ → CaSO₃

  5. 5. What mass of BaSO₄ (233.4 g mol⁻¹) forms when 0.0100 mol of sulfate ions is precipitated with excess Ba²⁺?

    • A. 0.233 g
    • B. 2.33 g
    • C. 23.3 g
    • D. 233 g

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