MediumChemistry
+4 / -1
When sulphur dioxide is passed in an acidified K2Cr2O7 solution, the oxidation state of sulphur is changed from;
A
+4 to 0
B
+4 to +2
C
+4 to +6
D
+6 to +4
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In the reaction MnO4− + 8H+ + ne− → Mn2+ + 4H2O What is the value of n?
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