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4.1 Acids

4.1 Acids

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Question 116

Which test shows that a gas is carbon dioxide?

A

A burning splint placed in the gas will make a squeaky 'pop' sound.

B

Damp blue litmus paper placed in the gas will turn red and then bleach white.

C

A glowing splint will relight when placed in the gas.

D

The gas will turn limewater cloudy when bubbled through it.

Markscheme

4.1 Acids Questions

  1. GCSE
  2. /Chemistry
  3. /4.1 Acids

276 exam-style questions on Edexcel GCSE Chemistry 4.1 Acids, covering 4.1.1 Acids, alkalis and the pH scale, 4.1.2 Hydrogen ion concentration and pH, 4.1.3 Dilute and concentrated, weak and strong acids, 4.1.4 Bases, alkalis and the reactions of acids, 4.1.5 Chemical tests for hydrogen and carbon dioxide, 4.1.6 Neutralisation as a reaction of acids with bases, 4.1.7 Preparing soluble salts, and 4.1.8 Solubility rules and preparing insoluble salts. Each one has a worked solution and a mark scheme showing where the marks go.

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