Advertisements
Advertisements
प्रश्न
Which of the following statement is incorrect?
पर्याय
the particles of matter are very, very small
the particles of matter attract one another
the particles of some of the matter are moving constantly
the particles of all the matter have spaces between them
Advertisements
उत्तर
The particles of some forms of matter move constantly
The statement that the particles of some forms of matter move constantly is incorrect because the particles of matter of all three states– solid, liquid and gas –are moving constantly. Although the particles of solids are fixed at their positions, they vibrate constantly.
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
The process in which a solid directly changes into a gas is called ....................
Why can a piece of chalk be broken easily into smaller pieces while a coal piece cannot be broken easily?
Classify the following into solids, liquids and gases.
Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
What are the two conditions for the interconversion of states of matter ?
Match the following
| Column A | Column B |
| (a) Solids | (1) Can flow in all directions. |
| (b) Sublimation | (2) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (3) Any number of free surfaces. |
| (d) Gases | (4) Gaps between particles. |
| (e) Intermolecular space | ro(5) Change of state fm solid to gas. |
Write whether the following statement are true or false.
The intermolecular force of attraction is the weakest in gases.
State two characteristics of matter demonstrated by diffusion.
Name the three states of matter.
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to space.
Air is not compressible.
