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Which one of the following process involves chemical reaction
  • a)
    Heating copper wire in presence of air at high temperature
  • b)
    Keeping petrol in a China dish in the open
  • c)
    Storing of Oxygen gas under pressure in a gas cylinder
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which one of the following process involves chemical reactiona)Heating...
When copper is heated in the presence of air in a very high temperature,a chemical reaction takes place. In this situation,the highly heated copper reacts with the oxygen of the air to form a thin layer of copper oxide on the surface of metallic copper
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Which one of the following process involves chemical reactiona)Heating...
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Community Answer
Which one of the following process involves chemical reactiona)Heating...
I think correct answer should be both A and B because both are possessing chemical changes..
As; heating of copper wire in air forms the copper oxide...and petrol in China fish will evaporate...
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Which one of the following process involves chemical reactiona)Heating copper wire in presence of air at high temperatureb)Keeping petrol in a China dish in the openc)Storing of Oxygen gas under pressure in a gas cylinderCorrect answer is option 'A'. Can you explain this answer?
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