Redox Reactions
53 past-paper questions on Redox Reactions · examined 2020–2025.
20258 questions
Acidified aqueous potassium manganate(VII) is used as a test reagent. When it is added to an aqueous solution of compound M, the colour of the test reagent changes from ......1...... . This colour change shows that M is ......2...... . Which words correctly complete gaps 1 and 2?
Acidified aqueous potassium manganate(VII) is used as a test reagent. Which words correctly complete gaps 1 and 2?
State which salt has an aqueous solution that is used to test for an oxidising agent.
Name the two products of the reaction when chlorine gas is bubbled into aqueous potassium iodide.
Describe the observations made during the reaction when chlorine gas is bubbled into aqueous potassium iodide.
Explain why the reaction in a catalytic converter involves both oxidation and reduction.
Construct the ionic equation for the reaction of nickel with dilute hydrochloric acid. Include state symbols.
Predict if nickel reacts with aqueous copper(II) ions. Explain your answer.
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