Question

when a crystal of potassium permanganate is placed in a beaker, its purple colour spreads throughout the water. what does this observation tell us about the nature of potassium permanganate and water ?

give short answer of about 6-7 lines
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Answer 1

Answer:

this shows that particles of matter have very small spaces between them

Answer 2

Answer:

☆ When we place few crystals of potassium permanganate in a beaker containing water, we get two distinct layers—colourless water at the top and pink colour at the bottom.

☆ After few minutes, pink colour spreads and whole solution turns pink due to diffusion. Since potassium permanganate is a solid substance, it does not possess so much space.

☆ Water molecules due to liquid state, collide with solid particles and intermix due to sufficient space between molecules.