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Chemistry · Oct / Nov 2021 · Paper 12 · Question 4

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; 115
  2. Bdistillation; 115
  3. Ccrystallisation; 125
  4. Ddistillation; 125

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Correct answer: C. crystallisation; 125

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