If an iron rod is dipped in CuS O_4 solution - Vidyadip

MCQ

If an iron rod is dipped in $CuS{O_4}$ solution

A
Blue colour of the solution turns green
✓
Brown layer is deposited on iron rod
C
No change occurs in the colour of the solution
D
Blue colour of the solution vanishes

✓

Answer

Correct option: B.

Brown layer is deposited on iron rod

b
(b)Brown layer is deposited on iron rod because $Cu$ has greater than reduction potential than that of $F{e^{2 + }}$.

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