MCQ
General formula of primary alcohol is
- A$>CHOH$
- B

- ✓$ - C{H_2}OH$
- D



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$(I)$ the highest oxidation state of iron is $+ 6$ in $K_ 2FeO_4$
$(II)$ that the iron shows $+ 2$ oxidation state with six electrons in the $3d$ orbitals
$(III)$ the common oxidation state of iron is $+3$ with five unpaired electrons in $3d$ orbital