Question

18. Select the correct order of evaporation for
water, alcohol, petrol and kerosene oil:
Water > alcohol > kerosene oil > petrol
b. Alcohol > petrol > water > kerosene oil
C. Petrol > alcohol> water > kerosene oil
a.
d. Petrol > alcohol > kerosene oil > water​

Answer 1

Answer:

C.Petrol>Alcohol>Water>Kerosene Oil ️

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Answer 2

Explanation:

A substance that has a lower boiling point will evaporate first. Boiling points of given species are:-

1) Boiling point of water = 100 c

2) Boiling point of alcohol = 79 c (here ethanol is considered as alcohol)

3) Boiling point of petrol = 95 C

4) boiling point of kerosene = 150 C -300 C

Hence, the correct answer is

alcohol > petrol> water > kerosene oil