IGCSE Chemistry (0620) — May–June 2024, Paper 42
6 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →A list of gases is shown (ammonia, helium, hydrogen, carbon dioxide, carbon monoxide, chlorine, methane, nitrogen dioxide, propene, sulfur dioxide). Each gas may be used once,…
Answer this question and get it marked →A list of five metals is shown: copper, iron, magnesium, potassium, silver. All metals form positive ions. Describe how atoms form positive ions.
Answer this question and get it marked →The symbol equation for the industrial production of ammonia is shown: N2(g) + 3H2(g) ⇌ 2NH3(g) ΔH = -90 kJ/mol Name this industrial process.
Answer this question and get it marked →A carboxylic acid reacts with an alcohol to produce an ester and water. Under certain conditions, this reaction can be reversed so an ester reacts with water to produce a…
Answer this question and get it marked →Sulfur is a Group VI element. A sample of sulfur contains two isotopes, ³²S and ³⁴S. Complete Table 5.1 to show the number of protons and neutrons in one atom of each isotope of…
Answer this question and get it marked →Glucose is involved in two processes. Glucose, C6H12O6, is made in plants from carbon dioxide and water. Name this process.
Answer this question and get it marked →