IGCSE Chemistry (0620) — October–November 2024, Paper 62
4 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →A teacher uses the apparatus shown in Fig. 1.1 to pass an electric current through molten mercury(II) bromide at a temperature of 300 °C. Fig. 1.1 shows a power supply connected…
Answer this question and get it marked →A student investigates the rate of the reaction between aqueous iron(III) nitrate and aqueous sodium thiosulfate. The student does five experiments using the apparatus in Fig. 2.1…
Answer this question and get it marked →A student tests two substances: solid M and solid N. Tests on solid M: Table 3.1 shows the tests and the student's observations for solid M. Test 1 (flame test on solid M) → lilac…
Answer this question and get it marked →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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