Question

e) Justify the following are redox reactions
CuO+ H2___ cu+H2O

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Answer 1

Explanation:

CuO + H2------------- Cu + H2O

we know that oxidation numbers

CuO------------ Cu

+2-2 -------------0. (oxidation numbers)

H2------------- H2O

0-------------------+2-2

now

oxidation numbers of copper is reduced 2 to 0 and oxidation numbers of hydrogen is increases 0 to +2

we know that when oxidation numbers is increases then oxidation reaction is happened and when oxidation numbers is decreases reduction is happened

when we combine both then it gives a reaction that is redox reaction .

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