Qualitative Analysis topic check · G3 Pure and O-Level Chemistry
Check what you know about G3 Pure Chemistry Qualitative Analysis, practise what needs work, then check your progress and come back for a later review.
Learning objectives
- describe the use of aqueous sodium hydroxide and/or aqueous ammonia to identify the following aqueous cations through the formation of precipitates (if any) and their subsequent solubility: aluminium, ammonium (together with evolution of ammonia gas upon warming), calcium, copper(II), iron(II), iron(III) and zinc (formulae of complex ions are not required)
- describe tests to identify the following anions: carbonate (by the addition of dilute acid and subsequent use of limewater); chloride (by reaction of an aqueous solution with nitric acid and aqueous silver nitrate); iodide (by reaction of an aqueous solution with nitric acid and aqueous silver nitrate); nitrate (by reduction with aluminium in aqueous sodium hydroxide to ammonia and subsequent use of damp red litmus paper) and sulfate (by reaction of an aqueous solution with nitric acid and aqueous barium nitrate)
- describe tests to identify the following gases: ammonia (using damp red litmus paper); carbon dioxide (using limewater); chlorine (using damp litmus paper); hydrogen (using a burning splint); oxygen (using a glowing splint) and sulfur dioxide (using acidified potassium manganate(VII)).
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Check what I know
Start with a check of what you already know. Answer each question and say how sure you are. We'll use this to suggest what to practise next.
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Check what I know
Start here to see which parts you already know.
About 8 minutes
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Answer 3 short questions. It shows what to work on next and doesn't count towards course progress.
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Practise
Work through questions with marking and feedback as you learn.
About 10 minutes
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About 10 minutes
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Recent attempts
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Beyond the syllabus: optional enrichment that does not count towards your progress.
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About 10 minutes
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Answer 3 questions. You'll see your score, the answers and explanations at the end. Your result can count towards your course progress.
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Beyond the syllabus: optional enrichment that does not count towards your progress.
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About 10 minutes
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Beyond the syllabus: optional enrichment that does not count towards your progress.
Review
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About 10 minutes
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Answer 3 questions. You'll see your score, the answers and explanations at the end. A scheduled review counts towards your course progress only when it is due.
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Recent attempts
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