A-LevelChemistryGroup 17May/June 2012Paper 1 Q161 Mark
Chlorine shows oxidation states ranging from −1 to +7 in its compounds. What are the reagent(s) and conditions necessary for the oxidation of elemental chlorine into a compound containing chlorine in the +5 oxidation state?
AAgNO3(aq) followed by NH3(aq) at room temperature
Bconcentrated H2SO4 at room temperature
Ccold dilute NaOH(aq)
Dhot concentrated NaOH(aq)
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The correct answer is D. This question tests the candidate's understanding of group 17 within the Chemistrysyllabus. The examiner's mark scheme requires...
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