Question

If a piece of iron in solid state kept near CUSO4 crystals does it get any reaction

Answer 1

Fe(s) + CuSO4(aq) => FeSO4(aq) + Cu(s)

Yes, a reaction would occur. Since Iron is higher in the reactivity series than copper as iron loses electrons more readily than copper. Hence, iron will displace Cu from CuSO4 to form FeSO4 and Cu

Answer 2

no I think reaction occurs only in aqueous state.....