Trends in Group 2 properties and reactions

Trends in Group 2 properties and reactions Quiz

Spec 3.2.2 · AQA A-Level Chemistry: Quiz

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  1. 1. Which Group 2 element has the lowest first ionisation energy?

    • A. Magnesium
    • B. Calcium
    • C. Strontium
    • D. Barium

  2. 2. Which equation correctly shows magnesium reacting with steam?

    • A. Mg(s) + 2H₂O(g) → Mg(OH)₂(s) + H₂(g)
    • B. Mg(s) + H₂O(g) → MgO(s) + H₂(g)
    • C. Mg(s) + H₂O(l) → MgO(s) + H₂(g)
    • D. Mg(s) + O₂(g) → MgO(s)

  3. 3. Why does strontium have a lower melting point than calcium?

    • A. Sr²⁺ ions are larger, so the attraction to the delocalised electrons is weaker
    • B. Strontium has fewer delocalised electrons
    • C. Strontium has weaker covalent bonds
    • D. Strontium has weaker London forces

  4. 4. In the extraction of titanium, what is the role of magnesium?

    • A. Oxidising agent
    • B. Catalyst
    • C. Reducing agent
    • D. Solvent

  5. 5. What mass of magnesium reacts with 1.00 mol of TiCl₄ (Ar of Mg = 24.3)?

    • A. 24.3 g
    • B. 48.6 g
    • C. 97.2 g
    • D. 12.2 g

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