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Student 'A' adds iron nails in copper sulphate solution taken in test tube 1. Student 'A' adds Cu turnings in ferrous sulphate solution taken in test tube 2. On which of the test tubes, change in colour takes place and why ? Write the reaction involved |
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Answer» 1.Iron nail will become reddish brown in Copper Sulphate solution. CuSO4+Fe------->FeSO4+CuThis is because the Iron is more reactive than copper and displaces copper from copper sulphate solution forming Iron Sulphate. 2.Copper Sulphate solution will change its colour from blue to green because the colour of copper sulphate solution is blue but after reaction it forms iron sulphate solution which is of green colour. |
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