How to learn the colours of precipitate?There are too much precipitate

1.	How to learn the colours of precipitate?There are too much precipitates.
Answer» Almost all precipitates of copper have blue colourIf you see the live reactions in lab you\'ll automatically learn all coloursHope your teacher has made you do the reactions yourselfIf not so then spend 15 minutes a day in learning. When you feel that you have learnt first write them and then revise them. Continue this practise for a week Then tell me the results

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