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2023 AQA GCSE CHEMISTRY 8462/2F Paper 2 Foundation Tier Question Paper &
GCSE
CHEMISTRY
Mark scheme (Merged) June 2023 [VERIFIED]
F
Foundation Tier Paper 2
Tuesday 13 June 2023 Morning Time allowed: 1 hour 45 minutes
Materials
For this paper you must have: For Examiner’s Use
• a ruler
• a scientific calculator Question Mark
• the periodic table (enclosed). 1
Instructions 2
• Use black ink or black ball-point pen. 3
• Pencil should only be used for drawing. 4
• Fill in the boxes at the top of this page.
5
• Answer all questions in the spaces provided. Do not write outside
the box around each page or on blank pages. 6
• If you need extra space for your answer(s), use the lined pages at the end of 7
this book. Write the question number against your answer(s).
8
• Do all rough work in this book. Cross through any work you do not want
to be marked. 9
• In all calculations, show clearly how you work out your answer. 10
Information TOTAL
• The maximum mark for this paper is 100.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear
presentation in your answers.
*JUN2384622F01*
IB/M/Jun23/E15 8462/2F
, 2
Do not write
outside the
There are no questions printed on this page box
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
*02*
IB/M/Jun23/8462/2F
, 3
Do not write
outside the
0 1 This question is about oxygen. box
Scientists think that there was little or no oxygen in the Earth’s early atmosphere.
0 1 . 1 Which planet today has an atmosphere that is similar to the Earth’s early
atmosphere?
[1 mark]
Tick (✓) one box.
Jupiter
Mars
Neptune
Saturn
0 1 . 2 Which is the approximate percentage of oxygen in the Earth’s atmosphere today?
[1 mark]
Tick (✓) one box.
20%
50%
80%
100%
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun23/8462/2F
, 4
Do not write
outside the
box
0 1 . 3 Which two of the following increased the percentage of oxygen in the Earth’s
atmosphere?
[2 marks]
Tick (✓) two boxes.
Active volcanoes emitted gases
Algae and plants evolved
Animals evolved
Carbonate sediments formed in oceans
Photosynthesis took place
*04*
IB/M/Jun23/8462/2F
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