39. Which of the following statements is correct?
Rusting of iron is a chemical change because
(a) a new substance with new properties is
produced
(b) chemical composition of reactant is changed
Answers
Answered by
3
Answer:
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Explanation:
Iron comes into contact with the wetness (humidity) in air and gets oxidized.
A thin layer of Iron oxide is formed on the surface. That is in brown color. It is not possible to get back Iron from Iron oxide, by using normal physical means of heating, filtering etc. So it is a chemical changes
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Answered by
3
Answer:
A) a new substance with new properties is produced
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