Q.

The correct order of evaporation of water, alcohol, petrol and kerosene is

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a

Alcohol > Petrol > Water > Kerosene

b

Water > Alcohol > Kerosene > Petrol

c

Petrol > Alcohol > Water > Kerosene

d

Petrol > Alcohol > Kerosene > Water

answer is D.

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Detailed Solution

Evaporation depends on based on the nature of the liquid.

The substances which have low boiling point those are evaporate quickly than other substances. The increasing order of evaporation of four compounds is shown below.

Boiling points of water =100°C.

Boiling point of alcohol  =78°C  (ethanol)

Boiling point of petrol =40175°C

Boiling point of Kerosene  =150°C300°C

Petrol > Alcohol > Kerosene > Water.

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