pls tell fast tommorrow is my exam.
Asked by srprusty
| 4th Jan, 2010,
06:26: PM
Expert Answer:
Reactions in which oxidation and reduction takes place simultaneously are called redox reactions.
If a substance gains oxygen during a reaction, it is said to be oxidised.
If a substance loses oxygen during a reaction, it is said to be reduced.
During the above reaction the copper(II) oxide is losing oxygen and is being reduced. Hydrogen is gaining oxygen and is being oxidised.
Answered by
| 5th Jan, 2010,
09:30: AM
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