IGCSE Chemistry (0620) — October–November 2024, Paper 52
3 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 19 marks · Rate of reaction: measuring reaction time
You are going to investigate the rate of the reaction between aqueous iron(III) nitrate and aqueous sodium thiosulfate. Read all of the instructions carefully before starting the…
Answer this question and get it marked →Question 2 · 15 marks · Experimental techniques: flame tests
You are provided with two solids: solid M and solid N. Do the following tests on solid M and solid N. Record all of your observations at each stage. Tests on solid M: Carry out a…
Answer this question and get it marked →Question 3 · 6 marks · Experimental techniques: planning a titration investigation
Limes and lemons are citrus fruits which contain aqueous citric acid in their juice. Citric acid reacts with alkalis such as aqueous sodium hydroxide. Plan an investigation to…
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