Which of the followng process does not involve oxidation of iron ?

1.	Which of the followng process does not involve oxidation of iron ?
Answer» formation of `Fe(CO)_(5)` from Fe Liberation of `H_(2)` from steam by iron at high temprature RUSTING of iron sheets decolourisation of blue `CuSO_(4)` solution by iron Solution :(a) oxidation does notoccur during formation of `Fe(CO)_(5)` from Fe since O.N of iron remains to be zero `overset(0)Fe+5cOrarroverset(0)Fe(CO)_(5)` In all other cases oxidation of Fe occurs since its O.N increases (b) `3Fe(s)+4H_(2)O(g)rarrFe_(3)O_(4)(s)+4H_(2)(g)` (C )`4Fe+3O_(2)+xH_(2)Orarr2Fe_(2)O_(3)xH_(2)O` (d) `CuSO_(4)+FerarrFeSO_(4)+cu`

Discussion