Which is the substance dat is oxidised & reduced ? :

Question

2KMnO4 --> K2MnO4 + MnO2 + O2

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( THANKZ ALOOT )

Answer 1

You may want to rewrite the equation as
KMnO4 + KMnO4 ==> K2MnO4 + MnO2 + O2

Remember that oxidation is the loss of electrons. Reduction is the the gain of electrons. I would focus my attention on Mn and O