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10.1 Using the Earth's resources and obtaining potable water

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Question 5

A remote railway station uses spring water. Before the water is sterilised with chlorine, it is passed through clean layers of sand and gravel. The untreated water contains suspended clay particles, pieces of moss and dissolved mineral salts.

Which material is expected to remain in the water immediately after filtration?

[1]
A

None of the three materials

B

The suspended clay particles

C

The dissolved mineral salts

D

The pieces of moss

Markscheme

10.1 Using the Earth's resources and obtaining potable water Questions

  1. GCSE
  2. /Chemistry
  3. /10.1 Using the Earth's resources and obtaining potable water

87 exam-style questions on AQA GCSE Chemistry 10.1 Using the Earth's resources and obtaining potable water, covering 10.1.1 Using the Earth's resources and sustainable development, 10.1.2 Potable water, 10.1.3 Waste water treatment, and 10.1.4 Alternative methods of extracting metals. Each one has a worked solution and a mark scheme showing where the marks go.

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