A-LevelChemistryChemical periodicityMay/June 2023Paper 1 Q181 Mark
In reactions 1 and 2, X represents an element in Period 3. In each reaction, X is forming a product where X is in its highest oxidation state. reaction 1 chlorine + element X → XzCl₂ reaction 2 oxygen + element X → XpOq Which ratios show a steady increase from sodium to phosphorus?
Aneither z:y nor q:p
Bz:y only
Cq:p only
Dboth z:y and q:p
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The correct answer is D. This question tests the candidate's understanding of chemical periodicity within the Chemistrysyllabus. The examiner's mark scheme requires...
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