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Q.

Is it true that heating copper wire in the presence of air is a chemical reaction?


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a

True

b

False  

answer is A.

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Detailed Solution

The above statement is true.
A chemical reaction takes place when the copper wire is heated in air at high temperatures. As a new product, copper oxide is formed. The reaction that takes place is:  2Cu(s) + O2(g) → 2CuO(s)
 
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Is it true that heating copper wire in the presence of air is a chemical reaction?