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

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asked Jan 30, 2018 in Chemistry by Kundan kumar (49,132 points) ● 34 ● 379 ● 1010

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

3MnO2(s) + 4Al(s) ------> 3Mn(/) + 2Al2O3(t) + Heat

(a) Is aluminium getting reduced?
(b) Is MnO2 getting oxidised?

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answered Jan 30, 2018 by Vikash Kumar (144,729 points) ● 8 ● 11 ● 21
 
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(a) No, because oxygen is added to aluminium, therefore, it is getting oxidised.
(b) No, since manganese has lost oxygen, therefore, it is getting reduced.

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