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Chemistry CBSE Live product
Class 9
Matter in our surroundings
Temperature scales, pressure on states of matter, and evaporation
7.
Boiling point and evaporation
Question:
2
m.
Choose the correct answer for the following questions:
1.
The correct order of evaporation of water, alcohol, petrol and kerosene is
Alcohol > petrol>water>kerosene
Water > alcohol>kerosene>petrol
Petrol>alcohol>kerosene>water
Petrol>alcohol>water> kerosene
2.
When will the water start to evaporate if we heat it?
Evaporation starts only after the boiling point
Evaporation starts before the boiling point
Evaporation exactly at the boiling point
None of the above
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