IGCSE Chemistry (0620) — May–June 2023, Paper 63
4 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →This question is about separating mixtures. The apparatus in Fig. 1.1 can be used to separate a mixture of liquids with different boiling points (a round-bottomed flask of liquid…
Answer this question and get it marked →A student investigates the temperature change when solid citric acid reacts with solid sodium carbonate, in six experiments. Experiment 1: 5.0 g of solid sodium carbonate stirred…
Answer this question and get it marked →A student tests two solids: solid G and solid H. Solid G contains three ions. Table 3.1 shows the observations for solid G: test 1 — flame test on solid G: lilac coloured flame.…
Answer this question and get it marked →Oxalic acid is a white solid which is soluble in both water and ethanol to form colourless solutions. Plan an experiment to determine if oxalic acid is more soluble in water or in…
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