Class 9 Chemistry MCQs - Chapter 5
Physical States of Matter Quiz Questions & Answers PDF Download - 3
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Physical States of Matter Exam Questions and Answers PDF Download: Test 3
The movement of molecules from higher concentration to lower concentration is called
- diffusion
- concentration
- effusion
- mobility
At Mount Everest, the water boils at
- 100 °C
- 90 °C
- 80 °C
- 70 °C
The barometer is invented by
- Galileo
- Robert Boyle
- Charles
- Torricelli
The melting and freezing of a substance occurs as
- same temperature
- more than melting point
- more than freezing point
- less than boiling point
If the liquid is heated to increase the kinetic energy then the liquid will
- evaporate slowly
- evaporate faster
- not evaporate
- boil
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