AQA GCSE Chemistry Chemistry Paper 1 (Higher), 2023
Every question from AQA GCSE Chemistry Chemistry Paper 1 (Higher), 2023: 10 questions, 100 marks, each with its mark scheme and topic.
- Question 1 9 marks
This multi-part question assesses knowledge of atomic models, the history of subatomic particle discovery, periodic table trends for new elements, the scientific process of peer review, and the calculation of relative atomic mass from isotopic abundance.
Chemistry · C1: Atomic Structure and the Periodic Table
- Question 2 11 marks
Analyze an investigation into the temperature change of ammonium nitrate dissolving in water, including identifying variables, plotting data, extrapolating a line of best fit, explaining endothermic observations, interpreting uncertainty, and identifying error types.
Chemistry · Required Practicals · Required Practicals · C5: Energy Changes
- Question 3 8 marks
Describe a method to prepare pure, dry crystals of zinc chloride from zinc carbonate and a dilute acid, and identify two other substances that can react with a dilute acid to form zinc chloride.
Chemistry · Required Practicals · Required Practicals · C4: Chemical Changes
- Question 4 12 marks
This multi-part question assesses understanding of bond energy calculations, reaction profiles, covalent bonding, and the relationship between molecular size and intermolecular forces.
Chemistry · C2: Bonding, Structure and the Properties of Matter · C5: Energy Changes
- Question 5 12 marks
This multi-part question covers properties of acids, titration calculations, ion identification, and electronic structure.
Chemistry · Required Practicals · Required Practicals
- Question 6 9 marks
Evaluate the use of aluminium, copper, and silver for electrical wires, describe how metals conduct electricity, and explain why alloys do not conduct electricity as well as pure metals.
Chemistry · C2: Bonding, Structure and the Properties of Matter
- Question 7 9 marks
This question covers the electrolysis of aluminium oxide and the electrolysis of an aqueous solution, including half-equations, reactivity, mechanisms of ion discharge, experimental apparatus improvements, and gas volume calculations.
Chemistry
- Question 8 10 marks
This multi-part question tests knowledge of the periodic table, including electron configurations of noble gases, predicting chemical formulas, properties of non-metals, and the reaction of Group 2 metals with acids.
Chemistry · C1: Atomic Structure and the Periodic Table · C4: Chemical Changes
- Question 9 12 marks
This question covers redox reactions, displacement reactions, reactivity series, ionic charges, and atom economy calculations.
Chemistry · C3: Quantitative Chemistry · C4: Chemical Changes
- Question 10 8 marks
Explain why nanoparticles of titanium dioxide are used for self-cleaning windows and calculate the volume of chlorine gas required to react with 100 kg of titanium dioxide.
Chemistry · C2: Bonding, Structure and the Properties of Matter · C3: Quantitative Chemistry