Advertisements
Advertisements
प्रश्न
Give reason :
We can walk through air.
Advertisements
उत्तर
The molecules of air are far apart i. e. large gaps and we can walk through the air easily.
APPEARS IN
संबंधित प्रश्न
Why are liquids and gases called as fluids.
Give two examples for the following :
Substances which do not change their states.
Give two examples for the following :
Substances that are rigid and not compressible.
Fill in the blank
All the molecules of a substance are .............
What is the approximate size of a molecule?
Match the following
| Column A | Column B |
| (a) Solids | (i) Can flow in all directions |
| (b) Sublimation | (ii) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (iii) Any number of free surfaces. |
| (d) Gases | (iv) Gaps between particles. |
| (e) Intermolecular space | (v) Changes of state from solid to gas. |
Multiple choice question.
A kind of matter which can sublime is
Identify the odd term out and explain.
Hydrogen, sodium, potassium, carbon
Write a scientific reason.
Lemon sherbat has a sweet, sour and salty taste and it can be poured in a glass.
Write scientific reason.
A solid matter has the properties of definite shape and volume.
