Which of the following processes does not involve oxidation of ir… - Vidyadip

MCQ

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

A
Rusting of iron sheets.
B
Decolourisation of blue $\ce{CuSO}_4$ solution by $\ce{Fe}.$
✓
Formation of $\ce{Fe(CO)}_5$ from $\ce{Fe}.$
D
Liberation of $H_2$ from steam by iron at high temperature.

✓

Answer

Correct option: C.

Formation of $\ce{Fe(CO)}_5$ from $\ce{Fe}.$

$\because$ There is no change in oxidation state.
$\text{Fe}+5\text{CO}\xrightarrow{ \ \ \ \ \ \ }\text{Fe(CO)}_5$
$0\ \ \ \ \ \ \ \ \ \ \ 0 \ \ \ \ \ \ \ \ \ \ \ \ 0 \ \ \ \ \ 0$

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