Question

when a crystal of copper sulphate is placed at bottom of the beaker containing water the colour of water slowly become blue why

Answer 1

The spreading of blue colour of coppersulphate crystals in water is due to movement of water paticles as well as coppersulphate particles.due to the movement of particles the coppersulphate crystals and water particles mix with each other this is called diffusion.diffusion takes place untill the whole water obtain blue colour.
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