Chemistry · May / June 2016 · Paper 22 · Question B10
5070
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B10 Manganese(IV) oxide, MnO2, can be used in the preparation of both chlorine and oxygen. Reaction 1 MnO2(s) + 4HCl(aq) Cl2(g) + 2H2O(l) + MnCl2(aq) Reaction 2 2H2O2(aq) O2(g) + 2H2O(l) In reaction 2 manganese(IV) oxide acts as a catalyst.
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B10(a)[1]
B10(b)[2]
B10(c)[1]
B10(d)[4]
B10(e)[2]
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