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Monday, 19 October 2015

MATTER IN OUR SURROUNDINGS objective question test paper

 MATTER IN OUR SURROUNDINGS ,objective question test paper,for ssc,scc,ctet,mcq for competition,
 MATTER IN OUR SURROUNDINGS (objective)

1. As solid melts to form liquid:
a. Inter particle distance increases
b. Inter molecular forces of attraction decreases
c. Compressibility increases
d. All of the above
2. Which of the following is not characteristic of solid:
a. High Rigidity
b. Regular Shape
c. High density
d. High compressibility
3. The boiling point of water is:
 MATTER IN OUR SURROUNDINGS ,objective question test paper,for ssc,scc,ctet,mcq for competition,






a. 101oC at atmospheric pressure
b. 273K at atmospheric pressure
c. 0oC at atmospheric pressure
d. 0K at atmospheric pressure
4. Which of the following has highest intermolecular forces of attraction?
a. Water at room temperature
b. CO2 gas
c. Ethyl alcohol
d. Iron metal
5. Which of the following substances will undergo sublimation?
a. Common salt
b. Odonil
c. Sugar
d. Sand
6. The process of evaporation causes:
a. Cooling
b. Heating
c. Dryness
d. None of the above
7. The conversion of solid to gas directly is called:
a. Evaporation
b. Sublimation
c. Distillation
d. condensation
8. Evaporation of a liquid can take place:
a. At its boiling point
b. At all temperatures
c. At its freezing point
d. At a fixed temperature
9. Which of the following describes a liquid state:
a. Definite volume and definite shape
b. Definite volume and no specific shape
c. definite shape but no definite volume
d. neither definite shape nor definite volume
10. Wet clothes are kept for drying. Which of the following does not help them in drying:
a. Spreading it out
b. Blowing wind over it
c. Making the room a little warmer
d. Cooling the room
11. At higher altitudes the boiling points of liquids
a. Increases
b.decrease
c. Remains the same
 d. Increases then decreases
12. During evaporation particles of a liquid change into vapours :
a. From the surface
b. From the bulk
c. From the bottom
d. From all over the liquid
13. In which phenomenon does water change into water vapour below its boiling point:
a. Boiling
b. Evaporation
c. Freezing
d. Sublimation
14. We get the smell of hot food in the kitchen outside the house because of:
a. Boiling
b. Evaporation
c. Sublimation
d. Diffusion
15. which are the favourable conditions for liquefaction of petroleum gas:
a. High pressure, high temperature
b. Low pressure, low temperature
c. High pressure, low temperature
d. Low pressure, high temperature
16. latent heat of vapourisation is used to:
a. Overcome forces of attraction between the liquid particles at the boiling point
b. Overcome forces of attraction between solid particles at the freezing point
c. Increase the kinetic energy of particles in the liquid state
d. Increase the kinetic energy of the particles in the vapour phase
17. Which of the following has highest density?
a. Kerosene
b. Water
c. Iron
d. Wood
18. Dry ice on heating produces:
a. Liquid CO2
b. Gas CO2
c. Liquid water
d. Water vapour
19. Particles move randomly in:
a. Water
b. Sugar
c. Nitrogen
d. Dry ice
20. When we blow air into the balloon it inflates because:
a. Air particles diffuse into the balloon
b. Air particles collide with the walls of the balloon and exert pressure on them
c. Rubber is elastic in nature
d. The temperature of air in the balloon increases


Read more topics 
circle-theorem-2
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surface-area-and-volume
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circle
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polynomials
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co ordinate geometry

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