Some crystals of CuSO4 are taken in a dry test tube and heated on a flame.
The sample after heating is collected and a few drops of water are added to
it.
Write the colour change that takes place during the process.
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Explanation:When the crystals of CuSO4 is heated in a dry test tube then CuSO4 becomes colourless or white due to the loss of water of crystallization and anhydrous CuSO4 is formed but when few drops of water is added then CuSO4 regains its initial blue colour and forms CuSO4.5H2O(copper sulphate pentahydrate).
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