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Q.

Is it true that the change that occurs in the piece of iron, after heating and beating it to the desired shape is reversible?


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a

True

b

False  

answer is A.

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Detailed Solution

The above statement is true.
Reversible change is that change which can be reversed; that is, we can get back the original substance in its original form. The piece of iron, when heated, becomes soft and is beaten to get the desired shape. If we heat this piece of iron again, it will get soft. We can get the iron piece back in its original shape and form as it was earlier. So, this change is reversible.
 
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