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4.2 Reactions of acids

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Question 22
F

The pH of a solution can be measured using universal indicator or using a pH probe.

Why does a pH probe give a better measurement of the pH?

[1]
A

the probe gives a more precise value of the pH

B

the probe works over a wider range of pH values

C

the probe does not need to be washed between tests

D

the probe changes colour to match the pH

Markscheme

4.2 Reactions of acids Questions

  1. GCSE
  2. /Chemistry
  3. /4.2 Reactions of acids

88 exam-style questions on AQA GCSE Chemistry 4.2 Reactions of acids, covering 4.2.1a Reactions of acids with metals, 4.2.1b Redox in acid-metal reactions, 4.2.2 Neutralisation of acids and salt production, 4.2.3 Soluble salts, 4.2.4 The pH scale and neutralisation, 4.2.5a Titrations, 4.2.5b Calculating quantities in titrations, and 4.2.6 Strong and weak acids. Each one has a worked solution and a mark scheme showing where the marks go.

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