Disclaimer: This document was created by department heads with many years of experience teaching the
Pearson Edexcel IGCSE Chemistry course. We cannot however guarantee that it is an accurate representation
of the Summer 2025 examinations and students should not treat it as such. Please use this as an aid, alongside
other methods of revision.
Pearson Edexcel International GCSE (9-1)
Friday 13 June 2025
Morning (Time: 1 hour 15 minutes)
Chemistry
Unit: 4CH1
Paper: 2C
You must have:
Calculator, ruler
Instructions
• Use black ink or a ballpoint pen.
• Answer all questions.
• Answer the questions in the spaces provided.
○ There may be more space than you need.
• Show all the steps in any calculations and state the units.
Information
• The total mark for this paper is 70.
• The marks for each question are shown in brackets.
○ Use this as a guide as to how much time to spend on each question.
Advice
• Read each question carefully before you start to answer it.
• Write your answers neatly and in good English.
• Try to answer every question.
• Check your answers if you have time at the end.
Turn over →
© 2025 Empirical Tuition. All rights reserved.
, Answer all questions.
1. This question is about the extraction of metals.
(a) Which of the following elements is found in the Earth as an uncombined element? (1)
☒ A Iron
☒ B Gold
☒ C Aluminium
☒ D Zinc
(b) Lithium is found in which Group and Period of the periodic table? (1)
☒ A Group 1, Period 2
☒ B Group 2, Period 3
☒ C Group 3, Period 4
☒ D Group 1, Period 4
Lithium (Li) is a key component in rechargeable lithium-ion batteries, which are used in electric
vehicles.
Lithium can be extracted from its ore in a three-stage process:
• Stage 1: Lithium ore is heated to convert it into a more reactive form.
• Stage 2: The treated ore reacts with sulphuric acid to form lithium sulphate (Li2SO4).
• Stage 3: Lithium sulphate is then converted into lithium carbonate (Li2CO3), which is used
in the production of batteries.
2
, A sample of lithium sulphate contains the following composition by mass:
Element Mass (g)
Li 27.8
S 64.1
O 127.8
(c) Show by calculation that the empirical formula of this compound is Li2SO4. (3)
A chemist wants to confirm that lithium sulphate was obtained during stage 2 of the extraction
process.
(d) Describe the tests he could use to identify both lithium ions and sulphate ions. Include the
expected results. (5)
3
Pearson Edexcel IGCSE Chemistry course. We cannot however guarantee that it is an accurate representation
of the Summer 2025 examinations and students should not treat it as such. Please use this as an aid, alongside
other methods of revision.
Pearson Edexcel International GCSE (9-1)
Friday 13 June 2025
Morning (Time: 1 hour 15 minutes)
Chemistry
Unit: 4CH1
Paper: 2C
You must have:
Calculator, ruler
Instructions
• Use black ink or a ballpoint pen.
• Answer all questions.
• Answer the questions in the spaces provided.
○ There may be more space than you need.
• Show all the steps in any calculations and state the units.
Information
• The total mark for this paper is 70.
• The marks for each question are shown in brackets.
○ Use this as a guide as to how much time to spend on each question.
Advice
• Read each question carefully before you start to answer it.
• Write your answers neatly and in good English.
• Try to answer every question.
• Check your answers if you have time at the end.
Turn over →
© 2025 Empirical Tuition. All rights reserved.
, Answer all questions.
1. This question is about the extraction of metals.
(a) Which of the following elements is found in the Earth as an uncombined element? (1)
☒ A Iron
☒ B Gold
☒ C Aluminium
☒ D Zinc
(b) Lithium is found in which Group and Period of the periodic table? (1)
☒ A Group 1, Period 2
☒ B Group 2, Period 3
☒ C Group 3, Period 4
☒ D Group 1, Period 4
Lithium (Li) is a key component in rechargeable lithium-ion batteries, which are used in electric
vehicles.
Lithium can be extracted from its ore in a three-stage process:
• Stage 1: Lithium ore is heated to convert it into a more reactive form.
• Stage 2: The treated ore reacts with sulphuric acid to form lithium sulphate (Li2SO4).
• Stage 3: Lithium sulphate is then converted into lithium carbonate (Li2CO3), which is used
in the production of batteries.
2
, A sample of lithium sulphate contains the following composition by mass:
Element Mass (g)
Li 27.8
S 64.1
O 127.8
(c) Show by calculation that the empirical formula of this compound is Li2SO4. (3)
A chemist wants to confirm that lithium sulphate was obtained during stage 2 of the extraction
process.
(d) Describe the tests he could use to identify both lithium ions and sulphate ions. Include the
expected results. (5)
3
