CBSE Notes, Lectures

CBSE - Chemistry - Metals and Non-metals

Metals and Non-metals

Short Answer Type

The following reaction takes place when aluminium powder is heated with MnO2

The following reaction takes place when aluminium powder is heated with MnO2

3MnO2(s) + 4Al(s) → 3Mn(l) +2Al2O3  + Heat

(a) Is aluminium getting reduced?

(b) Is  MnO2 getting oxidised?

Ans. In this reaction, aluminium is getting oxidized because oxygen gets combined to it. Since oxygen is removed from manganese dioxide hence MnO2 is getting reduced.


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