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4.2 Identifying the products of chemical reactions

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Question 1
F

A student heats some copper carbonate. Copper oxide and a gas are made.

Which test and result identify the gas?

[1]
A

Bubble the gas through limewater. The limewater turns milky.

B

Hold a glowing splint in the gas. The glowing splint relights.

C

Hold a lit splint at the mouth of the tube. It makes a squeaky pop.

D

Bubble the gas through limewater. It fizzes and turns colourless.

Markscheme

4.2 Identifying the products of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /4.2 Identifying the products of chemical reactions

52 exam-style questions on OCR GCSE Chemistry 4.2 Identifying the products of chemical reactions, covering 4.2.1 Tests to identify gases, 4.2.2 Tests for aqueous ions and flame tests, and 4.2.3 Instrumental methods of analysis. Each one has a worked solution and a mark scheme showing where the marks go.

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