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A few granules of sample X arc added to ...

A few granules of sample X arc added to copper sulphate solution and of sample Y to iron sulphate solution. The changes observed arc shown in the figure.

X and Y are respectively

A

Fe, Zn

B

Zn, Fe

C

Fe, Cu

D

Zn, Cu

Text Solution

Verified by Experts

The correct Answer is:
A
Fe being more reactive than Cu, displaces Cu from `CuSO_4` solution.
`underset("(Blue)")(CuSO_4)+underset((X))(Fe)tounderset("(Green)")(FeSO_4)+underset("(Brownish deposit)")(Cu)`
Zn being more reactive than Fe, displaces Fe from `FeSO_4` solution.
`underset("(Green)")(FeSO_4)+underset((Y))(Zn)tounderset("(Colourless)")(ZnSO_4)+underset("(Greyish deposit)")(Fe)`
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