MCQ
The metal which does not form a polynuclear carbonyl is
- A$Mn$
- B$Co$
- ✓$Cr$
- D$Fe$
oxidation states.
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$C{{H}_{3}}OH\xrightarrow{HI}C{{H}_{3}}I\xrightarrow{KCN}$
$C{{H}_{3}}CN\xrightarrow{\text{reduction}}X\xrightarrow{HN{{O}_{3}}}Y$