MCQ
Which of the following processes does not involve oxidation of iron?
- ARusting of iron sheets.
- BDecolourisation of blue CuSO4 solution by Fe.
- CFormation of Fe(CO)5 from Fe.
- DLiberation of H2 from steam by iron at high temperature.
✓
Answer
- Formation of Fe(CO)5 from Fe.
Explanation:
$\because$ 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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