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Chemistry · May / June 2026 · Paper 12 · Question 29

5070Water

Water is added to anhydrous cobalt(II) chloride. Which colour change is seen?

  1. Ablue to pink
  2. Bblue to white
  3. Cpink to blue
  4. Dwhite to blue

As printed in the paper

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Correct answer: A. blue to pink

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