Group 1 and 2 trends and reactions

Group 1 and 2 trends and reactions Quiz

Spec 8.11–15 · Edexcel International A Level Chemistry: Quiz

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  1. 1. Which is the best explanation of why potassium is more reactive than lithium?

    • A. Potassium has more outer electrons to lose
    • B. The outer electron of potassium is further from the nucleus and more shielded, so it is lost more easily
    • C. Potassium has a smaller nuclear charge
    • D. Potassium atoms are smaller

  2. 2. What is the product of calcium oxide reacting with water?

    • A. CaOH
    • B. CaH₂
    • C. Ca(OH)₂
    • D. CaO₂

  3. 3. Which Group 2 sulfate is the least soluble?

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

  4. 4. Which is the ionic equation for neutralisation of a Group 1 hydroxide by dilute acid?

    • A. OH⁻ + H⁺ → H₂O
    • B. Na⁺ + Cl⁻ → NaCl
    • C. 2OH⁻ + H₂ → 2H₂O
    • D. O²⁻ + H₂O → 2OH⁻

  5. 5. 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

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