What colour is in the colour of iron nail and copper sulphate do you observe after giving the iron nail in copper sulphate solution for half an hour?
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Iron nail becomes reddish brown due to coating of Copper and Colour of copper sulphate solution fades.
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The ferrous sulphate crystals are light green in colour. The gas emitted has the characteristic odour of burning sulphur. On heating, the colour changes from light green to white. On further heating, the white substance changes to d
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