Matter in Our Surroundings

Chapter 1

1. In all the three states of water, chemical composition of water_

(a) is very different

(b) remains same

(c) sometimes same and sometimes different

d) none of the above

Ans: (b) remains same


2. The quantity of matter present in an object is called its:

(a) Weight

(b) Gram

(c) Mass

(d) Density

Ans: (c) Mass


3. 'Panch Tatva' of life.

(a) Air, god, water, mother, father

(b) Air, fire, earth, sky, water 

(c) Air, god, water, soil, crop

(d) Air, god, water, yield, money

Ans: (b) Air, fire, earth, sky, water 


4. Matter is classified on the basis of _____.

(a) Physical and chemical properties 

(b) Physical and biological properties

(c) Chemical properties 

(d) Biological and characteristically properties 

Ans: (a) Physical and chemical properties 


5. Intermixing of particles of two different types of matter on their own called _____.

(a) Dilution

(b) Mixing

(c) Diffusion 

(d) Precipitate

Ans: (c) Diffusion 


6. Pa is the SI unit of pressure called as _____.

(a) pasteurize 

(b) pascal 

(c) pacal

(d) joule

Ans: (b) pascal 


7. Which of the following conditions is most favourable for converting gas into liquid?

(a) High pressure, low temperature 

(b) Low pressure, low temperature 

(c) Low pressure, high temperature 

(d) High pressure, high temperature 

Ans: (a) High pressure, low temperature 


8. Which of the following is not a property of gas?

(a) Gases have a definite shape

(b) Gases have a definite volume

(c) The rate of diffusion of a gas is higher 

(d) Gaseous particles are in a state of random motion. 

Ans: (a) Gases have a definite shape


9. ________ have a tendency to maintain their shape when subjected to outside force.

a) Solids 

b) Liquids 

c) Gas 

d) None of these 

Ans: a) Solids 


10. Liquids have no fixed shape but have a ______.

a) Fixed velocity 

b) Fixed value 

c) Fixed temperature 

d) Fixed volume

Ans: d) Fixed volume


11. Solids and liquids diffuse into ______.

a) Solid

b) Liquid 

c) Gas 

d) Air

Ans: b) Liquid 


12. The boiling point of water at sea level is

a) 0°C

b) 273 K

c) 373 K

d) 273°C

Ans: c) 373 K


13. The gaseous from the atmosphere diffuse and dissolve in ____.

a) Water 

b) Gas

c) Air

d) Solid

Ans: a) Water


14. Which of the following cannot be considered a from of matter?

a) Atom

b) Water 

c) Humidity 

d) Electron

Ans: c) Humidity 


15. During summer, water kept in a earthen pot becomes cool because of the phenomenon of

a) diffusion 

b) transpiration 

c) osmosis

d) evaporation 

Ans: d) evaporation 


16. On converting 25°C, 38°C and 66°C to Kevlin scale, the correct sequence of temperature will be

a) 298 K, 311 K and 339 K

b) 298 K, 300 K and 338 K

c) 273 K, 278 K and 543 K

d) 298 K, 310 K and 338 K

Ans: a) 298 K, 311 K and 339 K


17. A from a matter that has no fixed shape but has a fixed volume. An example of this from a matter is ____.

a) carbon 

b) ice

c) water vapour 

d) kerosene

Ans. d) kerosene


19. ____ and ____ gaseous are essential for the survival of aquatic animals and plants.

a) Hydrogen, oxygen

b) Carbon dioxide, nitrogen 

c) Oxygen, water

d) Carbon dioxide, oxygen

Ans. d) Carbon dioxide, oxygen 


20. Example of highly compressible gas used for humans need.

a) LPG

b) CNG

c) Only LPG

d) LPG and CNG

Ans. d) LPG and CNG


21.The sublimation is solid which undergoes ____ .

a) ice cube

b) naphthalene 

c) sodium chloride

d) potassium chloride

Ans. b) naphthalene


22. Kinetic energy of molecules is directly proportional to

a) Temperature

b) Pressure

c) Atmospheric pressure

d) All of these

Ans. a) Temperature


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

a) Purple (violet) 

b) Colourless

c) Yellow Ans.

d) Orange

Ans. a) Purple (violet) 


24. Water at 0 degree Celsius showing temperature at ____ K

a) 274

c) 277

b) 273

Ans. b) 273


25. Which of the following phenomena would increase on raising the temperature? 

a) Diffusion, evaporation, compression of gases

b) Evaporation, compression of gases, solubility

c) Evaporation, diffusion, expansion of gases

d) Evaporation, solubility, diffusion, compression of gases

Ans. c) Evaporation, expansion of gases diffusion,


26. Which of the following statements is incorrect about the state of matter?

a) The force of attraction between the gas particles is very less.

b) Plasma consists of super energetic and super excited particles.

c) The plasma glows with a special colour depending on the nature of the gas. 

d) Bose-Einstein condensate is formed by heating gas of extremely low density.

Ans. d) Bose-Einstein condensate is formed by heating gas of extremely low density.


27. When heat is constantly supplied by a burner to boiling water, then the temperature of the water during vaporisation:

a) Rises very slowly

b) Rises rapidly until steam is produced 

c) First rises and then becomes constant

d) Does not rise at all

Ans. d) Does not rise at all


Type By- Bikash Bora