Which one of the following processes in involve chemical reactions : *
storing oxygen gas under pressure in a gas cylinder
liquefacation of air
keeping petrol in a china dish in the open
heating copper wire in the presence of air at high temperature
Answers
Answered by
3
chemical reaction take place in : Heating copper wire in the presence of air at high temperature.
As cu react with o2.
hope it may help you...
Answered by
1
Answer:
Heating copper wire in the presence of air at high temperature
Explanation:
Oxidation of Metal to Black Copper (II) oxide
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