Chemistry 0620: REDOX REACTIONS Topical Past Paper Questions
Cambridge IGCSE Chemistry (0620) past-paper questions on REDOX REACTIONS, free. This topic is frequently examined across 26 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A student tests two substances: solid A and solution B. ## Tests on solid A Table 3.1 shows the tests and the student's observations for solid A. Table 3.1 (a) Identify the gas given off in test 2. (b) Identify solid A. Tests on solution B Solution B is aqueous aluminium nitrate.…
Nitric acid, $\text{HNO}_3$, and sulfuric acid, $\text{H}_2\text{SO}_4$, are strong acids. Ethanoic acid, $\text{CH}_3\text{COOH}$, is a weak acid. (a) One mole of each acid is added separately to $1000\text{ cm}^3$ of distilled water to form a dilute solution. All three acids di…
Silver oxide reacts with magnesium to make silver and magnesium oxide. $$ \mathrm{Ag_{2}O~+~M g \rightarrow 2Ag~+~MgO} $$ Which substance is oxidised in this reaction? A magnesium B magnesium oxide C silver D silver oxide
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