IGCSE Chemistry (0620) — May–June 2023, Paper 62
4 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Hot powdered lead(II) oxide is reduced by methane, a flammable gas. The products are lead, steam and carbon dioxide gas. Fig. 1.1 shows the apparatus used to reduce lead(II) oxide…
Answer this question and get it marked →A student investigates how the rate of the reaction between aqueous iron(III) nitrate and aqueous sodium thiosulfate changes with temperature, using the apparatus in Fig. 2.1 (a…
Answer this question and get it marked →A student tests two substances: solution F and solid G. Table 3.1 shows the tests and observations for solution F (divided into three portions): test 1 — flame test on the first…
Answer this question and get it marked →A metal polish is a mixture of four substances. Table 4.1 shows their properties: name of substance solubility in water reaction with dilute nitric acid --- --- --- propanol…
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