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Chemistry · May / June 2026 · Paper 12 · Question 27

5070Reactivity series

When element X is added to aqueous copper(II) sulfate, no effervescence is observed. The blue solution turns colourless. What is element X?

  1. Acalcium
  2. Bpotassium
  3. Csilver
  4. Dzinc

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Correct answer: D. zinc

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