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Q.

Is it true that the melting of wax is an irreversible change?


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a

True

b

False  

answer is B.

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Detailed Solution

The above statement is false.
A reversible change is a change where we get back the original substance in shape and form, which means it can be reversed. For example, wax melts on heating, and the same molten wax solidifies on cooling. So we get the original wax back.
The correct statement would be that the melting of wax is a reversible change.
 
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