Advertisements
Advertisements
प्रश्न
Which single term is used to describe the mixing of copper sulphate and water kept in a beaker, on its own?
Advertisements
उत्तर
Diffusion is the single term, which is used to describe the mixing of copper sulphate with water in a beaker on its own.
APPEARS IN
संबंधित प्रश्न
Give reasons for the following observation:
The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close.
What happens to water if it is heated and Explain the phenomenon of change of state of water.
Give reason:
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar.
Match the columns.
| (1) iron and gold | (a) molecules are very far apart |
| (2) melting | (b) pure substance |
| (3) intermolecular space | (c) non - metals |
| (4) compound | (d) the space between the molecules |
| (5) gases | (e) change from solid to liquid |
| (f) metals |
What is mass ?
How will you prove by an experiment that solids occupy space ?
Fill in the blank
The molecules are at a greater distance in ______ compared to liquids.
A piece of chalk can be broken into small particles by hammering but a piece of iron cannot be taken into small particles by hammering. Which characteristic of the particles of matter is illustrated by these observations?
Which one of the following statements is not true?
- the molecules in a solid vibrate about a fixed position
- the molecules in a liquid are arranged in a regular pattern
- the molecules in a gas exert negligibly small forces on each other, except during collisions
- the molecules of a gas occupy all the space available
Name the three states of matter.
