A-LevelChemistryAnalytical techniquesOct/Nov 2025Paper 1 Q201 Mark
R is the aqueous solution of an ionic compound. • A white precipitate is formed when R is added to Sr(NO3)2(aq). • No visible reaction is seen when R is added to dilute HNO3(aq). What is the anion present in compound R?
ACl⁻
BSO4²⁻
CHCO3⁻
DCO3²⁻
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The correct answer is B. This question tests the candidate's understanding of analytical techniques within the Chemistrysyllabus. The examiner's mark scheme requires...
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