Ncert Exercises & Solutions

Why is the highest oxidation state of manganese in fluorides +4 (as in MnF₄), while the highest oxidation state in oxides is +7 (as in Mn₂O₇)?

1.	Fluorine is more electronegative than oxygen
2.	Fluorine does not possess d orbitals
3.	Fluorine stabilises a lower oxidation state
4.	In covalent compounds, fluorine can form a single bond only, while oxygen forms a double bond

Hint: Oxygen can make a double bond

Explanation:
Highest oxidation state of manganese in fluoride is +4(\(MnF_4\)) but highest oxidation state in oxides is +7( \(Mn_2O_7\) ). The reasonis that in covalent compounds fluorine can form single bond while oxygen forms double bond.

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