Redox Titrations (AQA A-Level Chemistry): Quizzes

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Redox Titrations
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How does pH affect the redox potential of transition metal ions?

More acidic environments favor reduction

How do ligands affect redox potential of metal ions?

They stabilize certain oxidation states

What is the alternative name for Tollens' reagent test?

Silver mirror test

What is observed when an aldehyde reacts with Tollens' reagent?

A silver mirror forms

Why don't ketones react with Tollens' reagent?

They lack H on the carbonyl group

What is the mole ratio of Fe2+\text{Fe}^{2+} to MnO4−\text{MnO}_4^- in the redox reaction?

5:1

What color indicates the endpoint in a KMnO4\text{KMnO}_4 titration?

Faint pink

What is H2O2\text{H}_2\text{O}_2 oxidized to when reacting with MnO4−\text{MnO}_4^-?

Oxygen gas

Why is sulfuric acid added in MnO4−\text{MnO}_4^- titrations?

To maintain an acidic environment

What can permanganate titration of steel determine?

The percentage of iron in steel

Explore AQA A-Level Chemistry Revision Notes by Topics

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Properties of Period 3 Elements & their Oxides (A Level only)

Transition Metals (A Level only)

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Properties of Period 3 Elements & their Oxides (A Level only)

Transition Metals (A Level only)

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