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Which of the following processes does no...

Which of the following processes does not involve oxidation of iron ?

A

Liberation of `H_(2)` form steam by iron at high temperature

B

Rusting of iron sheets

C

Decolourization of blue `CuSO_(4)` solution by iron

D

Formation of `Fe(CO)_(5)` form Fe

Text Solution

Verified by Experts

The correct Answer is:
D
In both Fe and `Fe(CO)_(5)`, the oxidation state of iron is zero.
`3Fe + underset("steam")(4H_(2)O) rarr Fe_(3)O_(4) + 4H_(2)`
`Fe overset ("rusting") rarr underset((+3))(Fe_(2))O_(3) . xH_(2)O`
`CuSO_(4) (aq) + underset((0))(Fe)(s) rarr underset((+2))(Fe)SO_(4) (aq) + Cu (s)`
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