The movement of air, vapours of scent and smoke is known as [ ]
a) Diffusion b) Effusion c) Vaporisation d) All
2. The rate of diffusion of gases is _____ than that of liquids. [ ]
a) Lower b) Higher c) Moderate d) Both a and b
3. What kind of solution is drinking soda ? [ ]
a) Gas in liquid b) Liquid in gas c) Gas in gas d) Solid in liquid
4. The forces of attraction between molecules is greatest in the _____ state [ ]
a) Liquid b) Gaseous c) Solid d) All
5. What is the formula of Potassium permanganate ? [ ]
a) KMnO2
b) KMO4
c) KMnO4
d) KMnO
6. What do you observe after adding the KMnO4
drop to the 250 ml beaker with water ? [ ]
a) There is no change in the beaker b) The water changes to pink in beaker
c) Both a and b d) None
7. Diffusion is possible only when particles of matter move __________ [ ]
a) Continuously b) Not continously c) Constant d) All
8. From the below diagram oberve where the NH4
Cl ring will be formed. [ ]
NH3 NH4Cl NH3
a) NH3
end b) Nearly HCl end c) Middle of the tube d) All
9. Give an example for liquid-liquid diffusion [ ]
a) Alcohol in water b) Salt in water c) Gas in water d) Sugar in water
10. How do the particles of the solid distribute the liquid ? [ ]
a) Solid particles occupy the space between liquid particles
b) Liquid particles occupy the space between solid particles
c) Solid and Liquid have spaces
d) None
Answers
Answered by
3
Answer:
b effusion
b higher
a gas in liquid
c solid c kmno4
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