Question
Oxygen forms only $OF_2$ with fluorine while sulphur forms $SF_6$. Explain. Why?
✓
Answer
- Oxygen combines with the most electronegative element fluorine to form $OF_2$ and exhibits positive oxidation state $(+ 2)$. Since, oxygen does not have vacant J-orbitals it cannot exhibit higher oxidation states.
- Sulphur has vacant d-orbitals and hence can exhibit + $6$ oxidation state to form $SF_6$.
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