The oxidation state of sulphur on H2SO4 acid is...
The oxidation state of sulphur on H2SO4 acid is
-4
+6
4
-8
Correct answer is B
In SO4. The state of oxygen oxidation number is -2. Options A,C,D do not belong to the oxidation state in SO4
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The effect of the presence of impurities such as carbon and sulphur on iron is that they ...