Group 1 and 2 elements and their compounds

Group 1 and 2 elements and their compounds Quiz

Spec 4A · Edexcel A-Level Chemistry: Quiz

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  1. 1. Which Group 2 hydroxide has the highest solubility in water?

    • A. Mg(OH)₂
    • B. Ca(OH)₂
    • C. Sr(OH)₂
    • D. Ba(OH)₂

  2. 2. Which flame colour is characteristic of potassium compounds?

    • A. Lilac
    • B. Yellow
    • C. Brick-red
    • D. Apple-green

  3. 3. What is observed when magnesium nitrate is heated strongly?

    • A. A colourless gas only
    • B. A brown gas and a white solid residue
    • C. A green gas
    • D. No change

  4. 4. Why does calcium carbonate decompose more easily than barium carbonate?

    • A. Ca²⁺ has a higher charge density so it polarises the carbonate ion more
    • B. Ca²⁺ has a lower charge
    • C. Ca²⁺ is larger than Ba²⁺
    • D. Calcium carbonate is more soluble

  5. 5. Which trend in Group 2 is correct?

    • A. Sulfate solubility increases down the group
    • B. First ionisation energy increases down the group
    • C. Reactivity increases down the group
    • D. Thermal stability of carbonates decreases down the group

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