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10.1 Using the Earth's resources and obtaining potable water

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Question 5
F

Figure shows the stages used to treat sewage at a sewage treatment works.

Figure: Flow diagram of the stages used to treat sewage at a sewage treatment works

image

a.

Name the stage that takes place at X in Figure.

[1]
b.

Give the two products formed at stage X.

[2]
c.

Suggest why grit is removed at the start of the treatment.

[1]
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

40 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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