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Q.

Why does our palm feel cold when we put some acetone or petrol or perfume on it?

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a

Phenomenon of Evaporation

b

Phenomenon of Condensation

c

Phenomenon of Sublimation

d

Phenomenon of Absorption 

answer is B.

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Detailed Solution

Acetone, petrol etc are volatile substances. They evaporate in the open air and evaporation causes cooling.

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