Home › CBSE Class 10 › Science › class10_chem_redox_energy › In the reaction with hydrogen, copper oxide is:
In the reaction with hydrogen, copper oxide is:
ALosing hydrogen
BLosing carbon
CLosing nitrogen
DLosing oxygen
Answer & Solution
Correct answer: D. Losing oxygen
1. The black coating turns brown.
2. Copper metal is left behind.
3. The copper oxide is losing oxygen.
_Source: NCERT Class 10 Science, Ch 1 'Chemical Reactions and Equations'_
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