Question

State whether the following are physical or chemical changes.
Melting of wax :- ?

Answer 1

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Melting of wax :- Physical Change.

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Answer 2

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Melting of wax :- physical change

Solution: Melting of wax is temporary and wax can settle again on cooling and turns into a solid. Hence, the change is only physical and the state of matter changes. Burning of the candle is permanent because once it is burnt it cannot be converted into the candle.