When CuO reacts with hydrogen, .......... is reduced.
CuO
H2
Cu
H2O
A
CuO
B
H2
C
Cu
D
H2O
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Solution
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CuO+H2→Cu+H2O +2 0 0 +1
From the reaction, it is seen that oxidation state of Cu is changing from +2 to 0 and hydrogen from 0 to +1.
Hence, hydrogen is oxidized while copper is reduced.
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When CuO reacts with hydrogen, .......... is reduced.
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