why is the colour of copper sulphate solution changes when iron nail is dipped in it
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Answer: When an iron nail dipped in the copper sulphate solution than irondisplaces copper from the copper sulphate because iron is more reactive than copper. Therefore the colour of the copper sulphate solution changes.
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when iron nail dipped in copper sulphate solution .
iron displaces the copper and form ferrous sulphate which change the colour
iron displaces the copper and form ferrous sulphate which change the colour
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