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9.1 The composition and evolution of the Earth's atmosphere

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Question 1
F

A sample of air has a volume of 250 cm3. What is the approximate volume of oxygen in the sample?

[1]
A

5 cm35\ \text{cm}^35 cm3

B

25 cm325\ \text{cm}^325 cm3

C

50 cm350\ \text{cm}^350 cm3

D

125 cm3125\ \text{cm}^3125 cm3

Markscheme

9.1 The composition and evolution of the Earth's atmosphere Questions

  1. GCSE
  2. /Chemistry
  3. /9.1 The composition and evolution of the Earth's atmosphere

40 exam-style questions on AQA GCSE Chemistry 9.1 The composition and evolution of the Earth's atmosphere, covering 9.1.1 The proportions of different gases in the atmosphere, 9.1.2 The Earth's early atmosphere, 9.1.3 How oxygen increased, and 9.1.4 How carbon dioxide decreased. Each one has a worked solution and a mark scheme showing where the marks go.

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