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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-AC-AQ-0011 markL1 FoundationCalculatorWith OH⁻ and NH₃

Adding NaOH(aq) to Cu²⁺(aq) gives a

Salam Academy Original Practice · Proposed mark scheme

SA-AC-AQ-0021 markL2 StandardCalculatorWith OH⁻ and NH₃

Which hydroxide dissolves in excess NaOH?

Salam Academy Original Practice · Proposed mark scheme

SA-AC-AQ-0031 markL2 StandardCalculatorWith OH⁻ and NH₃

Excess NH₃(aq) added to copper(II) hydroxide gives

Salam Academy Original Practice · Proposed mark scheme

SA-AC-AQ-0041 markL2 StandardCalculatorWith OH⁻ and NH₃

The green precipitate from Fe²⁺ and NaOH turns brown on standing because

Salam Academy Original Practice · Proposed mark scheme

SA-AC-AQ-0051 markL2 StandardCalculatorAcidity

[Al(H₂O)₆]³⁺ is more acidic than [Mg(H₂O)₆]²⁺ because Al³⁺

Salam Academy Original Practice · Proposed mark scheme

SA-AC-AQ-0061 markL2 StandardCalculatorAcidity

Adding Na₂CO₃ to Fe³⁺(aq) produces

Salam Academy Original Practice · Proposed mark scheme

SA-AC-AQ-0071 markL2 StandardCalculatorAcidity

Adding Na₂CO₃ to Cu²⁺(aq) gives

Salam Academy Original Practice · Proposed mark scheme

SA-AC-AQ-0081 markL2 StandardCalculatorWith OH⁻ and NH₃

What is the overall charge on

\mathrm{[Fe(H_2O)_4(OH)_2]}

formed from Fe³⁺?

Salam Academy Original Practice · Proposed mark scheme

SA-AC-AQ-0101 markL2 StandardCalculatorIdentification

An orange-brown precipitate with NaOH indicates

Salam Academy Original Practice · Proposed mark scheme

SA-AC-AQ-0111 markL2 StandardCalculatorWith OH⁻ and NH₃

The formula of the neutral complex formed when Al³⁺(aq) reacts with three OH⁻ is

Salam Academy Original Practice · Proposed mark scheme

SA-AC-AQ-0121 markL2 StandardCalculatorIdentification

A white precipitate with NaOH that dissolves in excess NaOH is most likely

Salam Academy Original Practice · Proposed mark scheme

SA-AC-AQ-0091 markL3 ExamCalculatorIdentification

A solution gives a grey-green precipitate with a little NH₃; with excess NH₃, a purple solution forms. The ion is

Salam Academy Original Practice · Proposed mark scheme