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Chemistry · May / June 2025 · Paper 11 · Question 23

5070Group I properties

Rubidium is an element in Group I of the Periodic Table. Which statement about rubidium is correct?

  1. AIt has a higher melting point than potassium.
  2. BIt reacts with water to produce an acidic solution.
  3. CIt reacts with water to produce oxygen gas.
  4. DIt is more reactive than potassium.

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Correct answer: D. It is more reactive than potassium.

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