Question

Please answer this question​

Answer 1

Answer:

NCERT activity 1.

diluting pottasuun permagrnate

Answer 2

Answer:

All matter is made up of very small particles that are not visible to naked eye. We can prove this by performing the following experiment: Take two or three crystals of potassium permanganate and add in 100ml of water. We will see that the colour of the water gets changed. Now take 10ml of this solution and add it into another 100ml of fresh water, again you will observe that the colour of water will change but it is not that much dark as in first case. Now repeat this procedure three more time still you will find that the colour of the water gets change but it will become fainter and fainter.

Matter

This experiment shows that just a few crystals of potassium permanganate can colour a large volume of water (about 1000 L). So we conclude that there must be millions of tiny particles in just one crystal of potassium permanganate, which keep on dividing themselves into smaller and smaller

particles. Ultimately a stage is reached when the particles cannot divide further into smaller particles.