Question

1. If we dissolve crystals of potassium permanganate in water in a beaker without stirring then we will observe:
a) The process of evaporation, as potassium permanganate gets converted into gaseous state.
b) The process of diffusion as the particles of KMnO4 gets diffused into water.
c) The process of sublimation, as the particles of potassium permanganate get sublimed.
d) Potassium Permanganate cannot dissolve itself into water.
2.When we open a water tap and try to cut the stream with our fingers, then
a) we cannot cut the stream of water as particles of water attract one another. b) we cannot cut the stream of water as intermolecular attraction is not present in water molecules.
c) we can cut the stream of water as there is permanent intermolecular force of attraction in it.
d) we can cut the stream of water as there is no intermolecular force of attraction among particles of water

3.Solid, liquid and gas are called the three states of matter.
4. The smell of perfume gradually spreads across a room due to ______.
5. Why we are able to move our hand through the air but cannot do so through a wooden door or wall?
6. Mention two characteristics of the particles of matter.
7. The smell of hot cooking food reaches us faster than that of cold food from the fridge?

Answer 1

Answer:

I dont know the answer.

Answer 2

Answer:

the process of diffusion as the particles of kmn04gets diffused into water