Explain how iron is extracted from iron(III) oxide in a blast furnace and why carbon can be used.
From Chemistry Paper 1, Higher
66 marks
Describe how to prepare a pure, dry sample of copper(II) sulfate crystals from copper(II) oxide and dilute sulfuric acid.
From Chemistry Paper 1, Higher
74 marks
Predict the products at each electrode in the electrolysis of copper(II) chloride solution and write the half equation at the cathode.
From Chemistry Paper 1, Higher
133 marks
Explain why aluminium is extracted by electrolysis rather than reduction with carbon.
From Chemistry Paper 1, Higher
143 marks
Explain the difference between a strong acid and a weak acid.
From Chemistry Paper 1, Higher
154 marks
Explain the products of electrolysis of sodium chloride solution (brine).
From Chemistry Paper 1, Higher
213 marks
Write the ionic equation for the reaction of zinc with copper(II) sulfate and identify what is oxidised.
From Chemistry Paper 1, Higher
221 mark
What is the pH of a neutral solution?
Score 0 / 28 · 0 of 8 marked
This paper is written by Plasmo in the style of the AQA GCSE Combined Science exam. It is not a past paper and is not produced or endorsed by the exam board.