Question

the remaining:
4. Reducing agent :
Reason :

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Answer 1

Explanation:

Reducing agent means which reduces other one and oxidises itself.

Reducing agent : H2

Reason: First H2 has oxidation state 0 and later increased to 1. So it reduced Cuo and oxidised itself

Oxidised:H2

Reduced:Cuo

Oxidising agent: Cuo

Try writing reasons according to their oxidation States comparison.

Cuo oxidation state of Cu is +2 and O isps -2

H2 oxidation state is 0

Cu oxidation state is 0

H2O oxidation state is 1

Hope this answer helps you

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