which of the following is chamical change
a.evaporarion of water
b.burning of fuels
c.moving of a wheel
d.breaking of a brick
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BURNING OF FUELS IS THE ANSWER.
Physical change is that change in which the substance does not changes its composition but in chemical change substance changes it's composition and form a new substance. Burning of petrol is a chemical change because it changes it's composition after burning.
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The breaking of brick, Evaporation of a liquid and Moving of a wheel are physical changes because chemical composition remains same.
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