MATTER IN OUR SURROUNDING MCQ

 1.  CO2 can be easily liquified and even solidified because

      (a)   It has weak forces of attraction

      (b)   It has comparatively more force of attraction than other gases

      (c)   It has more intermolecular space

      (d)   It is present in atmosphere.

2.  Which of the following has heighest kinetic energy?

      (a)   Particles of ice at 0 °C

(b)   Particles of water at 0 °C

      (c)   Particles of water at 100 °C

(d) Particles of steam at 100 °C

3.  Bose-Einstein Condensate have

      (a)   Very low kinetic energy

(b)   Low kinetic energy

      (c)   High kinetic energy

(d)   Highest kinetic energy.

4.  Which of the following is most suitable for summer?

      (a)   Cotton

(b)   Nylon

(c)   Polyester

(d)   Silk.

5.  Which of the following is incorrect about plasma?

      (a)   Fluorescent tube and neon sign bulbs consist of plasma.

      (b)   The gas gets ionised when electrical energy flows through it.

      (c)   It consists of super-energetic and super-excited particles.

      (d)   The plasma glows with colour which does not depend upon nature of gas.

6.  The colour of vapours formed on sublimation of iodine solid is

      (a)   Purple (violet)

      (b)   Colourless

      (c)   Yellow

      (d)   Orange

7.  Under which of the following conditions we can boil water at room temperature?

      (a)   At low pressure

(b)   At high pressure

      (c)   At very high pressure

(d)   At atmospheric pressure

8.  Which of the following is not endothermic process?

      (a)   Fusion

(b)   Vapourisation

      (c)   Temperature

(d)   Insoluble heavy impurities

9.  Which of the following does not affect rate of evaporation?

      (a)   Wind speed

(b)   Surface area

      (c)   Temperature

(d)   Insoluble heavy impurities

10.  Kinetic energy of molecules is directly proportional to

         (a)   Temperature

(b)   Pressure

         (c)   Both (a) and (b)

(d)   Atmospheric pressure

1. (b)	2. (d)	3. (a)	4. (a)
5. (d)	6. (a)	7. (a)	8. (c)
9. (d)	10. (a)

1. Which of the following is NOT a form of matter?
   (a) Air
   (b) Love
   (c) Almonds
   (d) Lemon water
   Ans: (b) Love

2. The smell of perfumed incense sticks spreads throughout the room due to which property of matter?
   (a) High density
   (b) Low boiling point
   (c) Movement of particles
   (d) High latent heat
   Ans: (c) Movement of particles

3. Which is the smallest unit of matter?
   (a) Atom
   (b) Molecule
   (c) Particle
   (d) Element
   Ans: (a) Atom

4. Which of the following statements is true about the states of water?
   (a) Chemical composition changes in all states
   (b) Only the physical state changes, chemical composition remains same
   (c) Sometimes composition changes, sometimes not
   (d) Only state changes, never temperature
   Ans: (b) Only the physical state changes, chemical composition remains same

5. Which of the following is not a property of gases?
   (a) No definite shape or volume
   (b) Very low compressibility
   (c) Highly diffusive
   (d) Particles move randomly
   Ans: (b) Very low compressibility

6. Bose-Einstein condensate is formed by:
   (a) Heating gas of extremely low density
   (b) Cooling gas of extremely low density
   (c) Compressing liquids at high pressure
   (d) None of the above
   Ans: (b) Cooling gas of extremely low density

7. Which process is involved when dry ice sublimes?
   (a) Solid to liquid
   (b) Liquid to gas
   (c) Solid to gas
   (d) Gas to liquid
   Ans: (c) Solid to gas

8. Kinetic energy of molecules is directly proportional to:
   (a) Temperature
   (b) Pressure
   (c) Volume
   (d) Both (a) and (b)
   Ans: (a) Temperature

9. Which of the following conditions causes water to boil at room temperature?
   (a) At low pressure
   (b) At high pressure
   (c) At atmospheric pressure
   (d) At no pressure
   Ans: (a) At low pressure

10. Which is not a property of solids?
    (a) Fixed shape
    (b) Fixed volume
    (c) High compressibility
    (d) High density
    Ans: (c) High compressibility

11. Which phenomenon would increase with an increase in temperature?
    (a) Evaporation, diffusion, compression of gases
    (b) Evaporation, solubility, diffusion, compression of gases
    (c) Evaporation, diffusion, expansion of gases
    (d) Evaporation, solubility, compression of gases
    Ans: (c) Evaporation, diffusion, expansion of gases

12. Which of the following is an example of a solid that sublimes at room temperature?
    (a) Wax
    (b) Iodine
    (c) Mercury
    (d) Camphor
    Ans: (b) Iodine

13. The process of changing a substance from a gas to a liquid is called:
    (a) Condensation
    (b) Sublimation
    (c) Freezing
    (d) Evaporation
    Ans: (a) Condensation

14. A diver can easily cut through water in a swimming pool due to which property of water?
    (a) High density
    (b) Weak interparticle forces
    (c) High compressibility
    (d) High surface tension
    Ans: (b) Weak interparticle forces

15. Which of the following is NOT a factor affecting the rate of evaporation?
    (a) Wind speed
    (b) Surface area
    (c) Solubility of substance in water
    (d) Temperature
    Ans: (c) Solubility of substance in water

16. Which of the following states of matter has both fixed volume and fixed shape?
    (a) Solid
    (b) Liquid
    (c) Gas
    (d) Plasma
    Ans: (a) Solid

17. When water changes from 0°C to ice at the same temperature, it:
    (a) Absorbs heat
    (b) Releases heat
    (c) Neither absorbs nor releases heat
    (d) Absorbs a large amount of heat
    Ans: (b) Releases heat

18. Which of the following does NOT show the properties of a fluid?
    (a) Honey
    (b) Petrol
    (c) Glass
    (d) Alcohol
    Ans: (c) Glass

19. The temperature at which a liquid turns to gas is called:
    (a) Boiling point
    (b) Melting point
    (c) Freezing point
    (d) Condensation point
    Ans: (a) Boiling point

20. Which statement about plasma is incorrect?
    (a) Plasma glows with a special colour depending on the gas
    (b) Plasma is found in neon signs
    (c) Plasma consists of super energetic particles
    (d) Plasma is formed by heating a gas
    Ans: (d) Plasma is formed by heating a gas (actually, it is formed by ionizing a gas with electrical energy)