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10.1 Using the Earth's resources and obtaining potable water

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Question 9
F

A student tests four water samples to find which one is closest to neutral. Which piece of equipment gives the most precise value of pH?

[1]
A

Universal indicator paper compared with a printed colour chart

B

A pH meter with a probe placed in each of the water samples

C

Litmus paper dipped into each of the water samples in turn

D

Methyl orange indicator added to each of the water samples

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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