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Chemistry · May / June 2025 · Paper 11 · Question 39

5070Separation and purification

An impure sample of compound X has a melting point of 120 °C. X is purified and its melting point is measured again. Which row is correct?

  1. Acrystallisation | 125
  2. Bcrystallisation | 115
  3. Cdistillation | 125
  4. Ddistillation | 115

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Correct answer: A. crystallisation | 125

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