A-LevelChemistryElectrochemistryMay/June 2014Paper 1 Q171 Mark
When solid sodium iodide reacts with concentrated sulfuric acid, the products include NaHSO4, H2S, SO2 and S. In the formation of which product has the oxidation state of sulfur changed by a value of 8?
AH2S
BNaHSO4
CS
DSO2
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The correct answer is A. This question tests the candidate's understanding of electrochemistry within the Chemistrysyllabus. The examiner's mark scheme requires...
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