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Chemistry · May / June 2017 · Paper 11 · Question 3

5070Separation and purification

Which statement about pure hexane, C6H14, is correct?

  1. AIt boils over a range of temperatures.
  2. BIt burns in excess oxygen to form carbon monoxide and water only.
  3. CIt mixes with water.
  4. DIt melts at a fixed temperature.

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Correct answer: D. It melts at a fixed temperature.

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