Suprise Test
Sorry students, due to extreme emergency , I have to go outside the home.
So all of you are requested to attempt the test paper.
All questions are of 2 marks.
1. Write the name of 5 states of matter.
2. Write differences between solid liquid and gases.
3. What what do you mean by kinetic energy of a molecule.
4. Define density and write it's SI unit.
5. Intermolecular force of attraction is maximum in :
(A) solid (B) Liquid (c) Gas (D) None
6. Intermolecular distance is maximum in:
(A) Solid (B) Liquid (c) Gas (D) None .
7. Density is maximum for:
(A) Solid (B) Liquid (c) Gas (D) None
8. Compressibility is maximum for:
(A) Solid (B) Liquid (c) Gas (D) Plasma
9. Rigidity is minimum for :
A) Solid (B) Liquid (c) Gas (D) None.
10. What is the meaning of sublimation ?
All questions are of 4 marks.
11. What do you mean by sublime substances ? Write name any 2 sublime substances.
12. Define the following term
(A) Melting point
(B) freezing point
(C) condensation
(D) Boiling point.
13. What do you mean by diffusion. Out of solid , liquid and gases , which substance diffuses faster, and why ?
14. Pick out 5 matter from the following:
Chair, table, sense of smell, hate ,love , sun, air , mud.
15. What are the characteristics of particles of matter ( any 2)
Why naphtelene tablets disappear after few days.
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