NEET 2012 Chemistry question
A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number?
Answer: (4)
Solution
The reaction mixture contains (oxidising agent), oxalic acid (reducing agent) and (acidic medium). Carbon: in oxalic acid in , a change of 1 unit. Sulphur remains (in ) and hydrogen
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