Chemistry 0620 · IGCSE · The characteristic properties of acids and bases

The characteristic properties of acids and bases — practice question

This question concerns sulfuric acid and compounds that can be produced from it.
(a)[2]

Sulfuric acid is classed as a strong acid. What does the term strong acid mean?

(b)[1]

Complete the table to determine the volume of dilute sulfuric acid that reacts with 25.0 cm^{3} of aqueous sodium hydroxide in reaction 2.

(c(i))[1]

A flame test was carried out on aqueous sodium hydrogen sulfate. Describe the observation you would make.

(c(ii))[2]

Solid copper(II) oxide was added to aqueous sodium hydrogen sulfate, and the mixture was heated. Describe what you would see.

(d(i))[1]

State the observation that would indicate that SO₄^{2}⁻ is present.

(d(ii))[2]

Write an ionic equation for the reaction that happens if SO₄^{2}⁻ is present. Include state symbols.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: Strong = completely dissociated / present only as ions in solution

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