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oxidation : oxygen is gained or hydrogen is lost from compound .
Catalytic properties : catalyst is not take part in the chemical reaction but , speeds up the reaction.
KMnO 4 + H 2S gives KMn + SO 4 + H 2
( displacement reaction , Oxidation reaction)
KMnO 4 +FeSO 4 gives KSO 4 + FeMnO
[( K )means potassium is more reactive than (Fe) iron . So , it displaces iron]
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