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6.3 Interpreting and interacting with earth systems

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Question 27
F

A student distils some sea water and collects the liquid that condenses.

Which result shows that the collected liquid is pure water?

[1]
A

The liquid is colourless.

B

The liquid has a pH of 7.

C

The liquid boils at exactly 100 ∘C100\,^\circ\mathrm{C}100∘C.

D

The liquid passes through filter paper and leaves no solid on the paper.

Markscheme

6.3 Interpreting and interacting with earth systems Questions

  1. GCSE
  2. /Chemistry
  3. /6.3 Interpreting and interacting with earth systems

51 exam-style questions on OCR GCSE Chemistry 6.3 Interpreting and interacting with earth systems, covering 6.3.1 Formation and evolution of the atmosphere, 6.3.2 The greenhouse effect and climate change, 6.3.3 Sources and problems of atmospheric pollutants, and 6.3.4 Producing potable water. Each one has a worked solution and a mark scheme showing where the marks go.

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