Advertisements
Advertisements
Question
Give reasons for the following:
Sugar can be distinguished from talcum powder using water.
Advertisements
Solution
Sugar is soluble in water whereas talcum powder is not.
RELATED QUESTIONS
Water cycle is an example of inter conversion of states of water. Explain.
Give reason for the following.
Pure substances have fixed melting or boiling points.
The process by which a solid changes into a liquid is called
- freezing
- melting
- condensation
- evaporation
What is volume ?
Give reason of Why do liquids and gases flow but solids do not ?
When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance spreads in the whole room quickly. Which characteristic of the particles of matter is illustrated by this observation?
Give reasons for the following:
Solids have a definite shape and are highly rigid while gases have to definite shape and are least rigid.
Give a reason why –
Solids have a definite volume & a definite shape.
Describe simple experiment to show that particles of matter are closely packed in solids and less in liquids.
‘Inter-particle attraction between atoms of gases is very weak’. State five properties of gases which correlate as a consequence of the weak inter-particle attraction between particles of gases.
