GCSE CHEMISTRY (9–1): PAST PAPER 1:
HIGHER TIER. ALL ASSESSMENT &
MARK SCHEME ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ Revision Strategies.
Answer: Methods to prepare effectively for exams.
◍ Chemical Equations.
Answer: Representations of chemical reactions using symbols.
◍ Name three naturally occurring polymers important for life.
Answer: Proteins, starch and cellulose
◍ Question Types.
Answer: Different formats of questions in the exam.
◍ Which conditions would produce the highest yield of ammonia?.
Answer: Low temperature, high pressure
◍ Exam Format.
Answer: Structure and layout of the examination paper.
◍ Describe the structure of DNA.
Answer: Two polymer chains made form four different monomers called
nucleotides, in the form of a double helix
◍ Why is a pressure of 200 atmosphere used in the Haber process?.
Answer: To increase the yield of ammonia without incurring the very high
energy and equipment costs for achieving very high pressures
◍ Name two ways of extracting copper from low-grade ores.
Answer: Phytomining and bioleaching
,◍ Practical Experiments.
Answer: Hands-on activities to demonstrate chemical principles.
◍ What are the names of the first four members of the homologous series of
alcohols?.
Answer: Methanol, ethanol, propanol and butanol
◍ Student Notes.
Answer: Personalized study materials created by a student.
◍ Chemistry 8462/1H.
Answer: Specific code for AQA Chemistry exam.
◍ 57 pages.
Answer: Total number of pages in the document.
◍ GCSE.
Answer: General Certificate of Secondary Education, UK qualification.
◍ What is a reversible reaction?.
Answer: Where the products of a chemical reaction can react to produce the
original reactants
◍ How can you reduce a carbon footprint?.
Answer: By reducing the emissions of carbon dioxide and methane
◍ Stoichiometry.
Answer: Study of quantitative relationships in chemical reactions.
◍ University of Nairobi.
Answer: Institution mentioned in the context of notes.
◍ Describe how flame spectroscopy takes place.
Answer: Sample is put in a flame and the light given out is analysed through
a spectroscope
◍ Merged Question Paper.
Answer: Combined set of questions from various topics.
, ◍ Assessment Objectives.
Answer: Criteria for evaluating student performance.
◍ Subject Content.
Answer: Topics covered in the Chemistry curriculum.
◍ Safety Procedures.
Answer: Guidelines to ensure safety in the lab.
◍ Exam Duration.
Answer: Total time allocated for completing the exam.
◍ Periodic Table.
Answer: Chart organizing all known chemical elements.
◍ Paper 1.
Answer: First exam paper in the AQA Chemistry series.
◍ Document Sharing.
Answer: Process of distributing documents electronically.
◍ What is the advantage of borosilicate glass over soda-lime glass?.
Answer: Borosilicate glass melts at a higher temperature
◍ Mark Scheme.
Answer: Guidelines for grading exam responses.
◍ AQA.
Answer: Assessment and Qualifications Alliance, UK exam board.
◍ Downloaded by.
Answer: Indicates who accessed the document.
◍ Higher Tier.
Answer: Advanced level of assessment for students.
◍ How can you change the direction of a reversible reaction?.
Answer: By changing the conditions; for example heating or cooling the
reaction
HIGHER TIER. ALL ASSESSMENT &
MARK SCHEME ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ Revision Strategies.
Answer: Methods to prepare effectively for exams.
◍ Chemical Equations.
Answer: Representations of chemical reactions using symbols.
◍ Name three naturally occurring polymers important for life.
Answer: Proteins, starch and cellulose
◍ Question Types.
Answer: Different formats of questions in the exam.
◍ Which conditions would produce the highest yield of ammonia?.
Answer: Low temperature, high pressure
◍ Exam Format.
Answer: Structure and layout of the examination paper.
◍ Describe the structure of DNA.
Answer: Two polymer chains made form four different monomers called
nucleotides, in the form of a double helix
◍ Why is a pressure of 200 atmosphere used in the Haber process?.
Answer: To increase the yield of ammonia without incurring the very high
energy and equipment costs for achieving very high pressures
◍ Name two ways of extracting copper from low-grade ores.
Answer: Phytomining and bioleaching
,◍ Practical Experiments.
Answer: Hands-on activities to demonstrate chemical principles.
◍ What are the names of the first four members of the homologous series of
alcohols?.
Answer: Methanol, ethanol, propanol and butanol
◍ Student Notes.
Answer: Personalized study materials created by a student.
◍ Chemistry 8462/1H.
Answer: Specific code for AQA Chemistry exam.
◍ 57 pages.
Answer: Total number of pages in the document.
◍ GCSE.
Answer: General Certificate of Secondary Education, UK qualification.
◍ What is a reversible reaction?.
Answer: Where the products of a chemical reaction can react to produce the
original reactants
◍ How can you reduce a carbon footprint?.
Answer: By reducing the emissions of carbon dioxide and methane
◍ Stoichiometry.
Answer: Study of quantitative relationships in chemical reactions.
◍ University of Nairobi.
Answer: Institution mentioned in the context of notes.
◍ Describe how flame spectroscopy takes place.
Answer: Sample is put in a flame and the light given out is analysed through
a spectroscope
◍ Merged Question Paper.
Answer: Combined set of questions from various topics.
, ◍ Assessment Objectives.
Answer: Criteria for evaluating student performance.
◍ Subject Content.
Answer: Topics covered in the Chemistry curriculum.
◍ Safety Procedures.
Answer: Guidelines to ensure safety in the lab.
◍ Exam Duration.
Answer: Total time allocated for completing the exam.
◍ Periodic Table.
Answer: Chart organizing all known chemical elements.
◍ Paper 1.
Answer: First exam paper in the AQA Chemistry series.
◍ Document Sharing.
Answer: Process of distributing documents electronically.
◍ What is the advantage of borosilicate glass over soda-lime glass?.
Answer: Borosilicate glass melts at a higher temperature
◍ Mark Scheme.
Answer: Guidelines for grading exam responses.
◍ AQA.
Answer: Assessment and Qualifications Alliance, UK exam board.
◍ Downloaded by.
Answer: Indicates who accessed the document.
◍ Higher Tier.
Answer: Advanced level of assessment for students.
◍ How can you change the direction of a reversible reaction?.
Answer: By changing the conditions; for example heating or cooling the
reaction
