Question

1. A substance X has definite volume, no hved shape and is almost incompressible What is the prysical state of the
CLASS ASSIGNMENT 2
Solids, liquids and an
substance X?
2. Arrange the following in the increasing order of intermolecular force of attraction water, common sait, Alt
3. A substance has nenher a fived shape nor a fixed volume which physical state is described by these properties
4. In which state of matter, the force of cohesion is minimum? Solid, liquid, Gaseous
5. What are porous solids? Give one example.
6. Which of the following physical states has more kinetic energy ice, Water, Water vapour
7. A change in the physical state of any matter can be caused by either of the following
(1) By changing temperature 61) By changing pressure (u) By changing both temperature and pressure
Give one example of each
8. A piece of chalk can be broken into small particles by hammering but a piece of iron cannot be broken into small partides
by hammering. Which property of matter is illustrated by this observation?
9. Fill in the blanks
(i) The smell of a perfume gradually spreads across a room due to
(ii) The arrangement of particles is less ordered in the
state whereas there is no order in the
10. Which of the following statement is not true?
(0) Molecules in a solid vibrate about their fired positions.
(ii) The molecules in a gas ezert very little force on each other except during collisions
(iii) Molecules in a gas occupy all the space available.
(iv) Molecules in a liquid are arranged in a regular order.
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Answer 1

Answer:

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Answer 2

Answer:

liquid

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