Some iron nails were dropped in an unknown solution taken in a beaker and left for 10 minutes. (A) Al2(SO4)3 (B) CuSO4
Some iron nails were dropped in an unknown solution taken in a beaker and left for 10 minutes. It was then observed that a brown coating is formed on nails. The solution is of
(A) Al2(SO4)3 (B) CuSO4
(C) FeSO4 (D) ZnSO4
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