Q.

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

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a

Petrol>alcohol>kerosone>water

b

Alcohol>petrol>water>kerosene

c

Petrol>alcohol>water>kerosone

d

Water>alcohol>kerosene>petrol

answer is B.

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Detailed Solution

The boiling point of liquid can affect the rate of evaporation. Greater the boiling point lesser the rate of evaporation.

LiquidBoiling pointAlcohol78°CPetrol91°CWater100°CKerosene150300°C

Hence the correct order of evaporation is

Alcohol>Petrol>Water>Kerosene .

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