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4.2 Identifying the products of chemical reactions

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Question 4
F

Hydrogen peroxide, H2O2\mathrm{H_{2}O_{2}}H2​O2​, slowly decomposes to form water and one other product, which is a gas.

Which test result would identify this gas?

[1]
A

A lit splint gives a squeaky pop.

B

Limewater turns milky.

C

Damp red litmus paper turns blue.

D

A glowing splint relights.

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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