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4.2 Reactions of acids

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Question 21

A solid contains potassium ions. A student adds dilute nitric acid to the solid and tests the gas produced.

TestResult
Bubble the gas through limewaterThe limewater turns milky
a.

Name the type of compound in the solid. Explain how the test result supports your answer.

[3]
b.

Name the salt formed in the reaction.

[1]
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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