AS & A Level Chemistry (9701) — October–November 2024, Paper 34
3 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 16 marks · Practical skills (quantitative analysis: iodine-thiosulfate titration)
Iodine reacts with propanone in the presence of an acid catalyst. The rate can be measured by determining how the concentration of iodine changes with time: CH₃COCH₃(aq) + I₂(aq)…
Answer this question and get it marked →Question 2 · 12 marks · Practical skills (quantitative analysis: heating to constant mass)
In this experiment you will identify the ions in the hydrated salt MA₂•2H₂O, where M is a Group 2 metal. You will first determine the relative formula mass of the salt by…
Answer this question and get it marked →Question 3 · 12 marks · Practical skills (qualitative analysis: thermal decomposition)
FB 6 is potassium manganate(VII). Place all the FB 6 in a hard-glass test-tube and heat gently at first and then more strongly. Record your observations. Leave the tube to cool…
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