Questions & Mark Scheme [Edexcel 1CH0/2F]
Exam Resource Summary
The GCSE Chemistry (9–1) June 2025 Paper 2: Foundation Tier [Edexcel 1CH0/2F] – All
Assessment Questions & Mark Scheme provides the full official examination paper together with the
complete mark scheme for the Foundation Tier assessment. This resource evaluates students’ knowledge
of key chemistry topics covered in Paper 2, such as rates of reaction, organic chemistry, chemical
analysis, the Earth’s atmosphere, and the Earth’s resources. The included mark scheme gives clear,
structured guidance on how marks are awarded, outlining essential scientific points, required working
for calculations, and examples of acceptable responses. This helps students understand examiner
expectations, refine their answer-writing technique, and build confidence in tackling structured and
extended-response questions. The resource is ideal for focused revision, classroom practice, and
thorough preparation for the June 2026 Edexcel GCSE Chemistry Paper 2 (Foundation Tier)
examination.
Turn over
, Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in a box . If you change your mind about an
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answer, put a line through the box and then mark your new answer with a cross .
1 The elements in group 7 of the periodic table are called the halogens.
(a) Give the symbol of the element astatine.
Use the periodic table to help you.
(1)
..............................................................
(b) (i) What is the colour of chlorine gas at room temperature?
(1)
A yellow-green
B red-brown
C purple
D black
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(ii) Damp blue litmus paper can be used to test for chlorine gas.
Use words from the box to complete the sentences.
(2)
blue orange red white yellow
When damp blue litmus paper is added to chlorine gas there are two colour changes.
The damp blue litmus paper changes from blue to . .. .... ..... .... .... .... .... .... .... .... ... .... .... .... .... .... .. .... .... .... .
The colour of the litmus paper then changes to . . ... ... ... ... .... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... ... . . DO NOT WRITE IN THIS AREA
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, (c) Figure 1 shows the atomic number and boiling point of some of the halogens.
halogen atomic number boiling point in °C
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fluorine 9 –188
chlorine 17 –35
bromine 35 59
iodine 53
Figure 1
(i) Describe the trend in the boiling points of the first three halogens in Figure 1.
(2)
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. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . ......................
(ii) Using the information in Figure 1, predict the boiling point of iodine.
Write your prediction on the answer line below.
(1)
boiling point of iodine = .......................... °C
(Total for Question 1 = 7 marks)
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, 2 (a) Flame tests can be used to identify some metal ions.
Draw one straight line from each flame colour to the metal ion that produces that
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flame colour.
(3)
flame colour metal ion
calcium, Ca2+
lilac
copper, Cu2+
orange-red
lithium, Li+
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potassium, K+
red
sodium, Na+
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