why does the colour of copper sulphate solutions change when zinc strip is dipped in it?
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29
Answer:
When zinc is added to copper sulphate solution, then the zinc metal displaces copper from copper sulphate to form zinc sulphate. This happens because zinc is more reactive than copper. CuSO4 solution has a blue colour while ZnSO4 solution is colourless. Zn(s) + CuSO4(aq) -> Cu(s) + ZnSO4 (aq).
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2
Answer:
Zn is more reactive than Cu,hence it displaces the Cu from it's CUSO4 solution
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