11 Study the given figure carefully. Which of the following reactions explains the above change most
appropriately?
[
Blue
Coloured
Solution
Green
coloured
solution
X nails
Reddish brown
deposition
a) ZnSO. + Cu → CuSO. + Zn
c) FeSO, + Cu → CuSO. + Fe
b) CuSO, + Fe — FeSO4 + Cu
d) CuSO, + Zn ZnSO2 + Cu
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Observing the action of zinc, iron, copper and aluminium metals for the following salt solutions.
Zinc sulphate (ZnSO4)
Copper sulphate (CuSO4)
Ferrous sulphate (FeSO4)
Aluminium sulphate (Al2(SO4)3)
Arranging the metals Zinc, Copper, Iron, and Aluminium in the decreasing order of reactivity based on the results obtained from the above:
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