1.

`SF_6` exists but `OF_6` does not becauseA. d-orbitals of sulphur are vacant and are available for bondingB. more bonding electrons can be accomodated in orbitals with n = 3C. sulphur has larger ionization energy than oxygenD. the difference of electronegativity is less between oxygen and fluorine.

Answer» Correct Answer - A
Vacant d-orbitals are present in sulphur and absent in oxygen


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