In the reaction represented by the equation; 2FeCl3 + SO2 + 2H2O → 2FeCl2 + H2SO4 + 2HCl the oxidation number of sulphur changes from?
A. +2 to + 6
B. + 4 to + 6
C. 0 to + 6
D. – 2 to + 4
E. +2 to + 4
Correct Answer:
Option B – + 4 to + 6
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