Question

Which of the following is a chemical change

A

Burning of coal

B

Dissolving sugar in water

C

Dissolving salt in water

D

Melting of ice

Hard

Solution

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Correct option is
A

Burning of coal

A chemical change is the process in which chemical composition of the substance is changed,and physical composition may or may not changed burning of coal that is carbon(C) in presence of oxygen gives a different chemical substance $$CO_2$$. So, it is a chemical change. Hence option A is correct.

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