IGCSE Chemistry (0971) — May–June 2023, Paper 42
6 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Using the oxides A to H, state which oxide is responsible for acid rain.
Answer this question and get it marked →Fluorine, chlorine and bromine are in Group VII of the Periodic Table. State the name given to Group VII elements.
Answer this question and get it marked →Over 200 million tonnes of sulfuric acid are manufactured every year. State the name of the process used to manufacture sulfuric acid.
Answer this question and get it marked →Solid sodium hydroxide is a base which dissolves to form an aqueous solution, NaOH(aq). State what is meant by the term base.
Answer this question and get it marked →Propane and propene both react with chlorine. When a molecule of propane, C3H8, reacts with chlorine in the presence of ultraviolet light, one atom of hydrogen is replaced by one…
Answer this question and get it marked →Carboxylic acids can be converted to esters. Name the ester formed when butanoic acid, CH3CH2CH2COOH, reacts with ethanol, CH3CH2OH.
Answer this question and get it marked →