SF_6 is known but SCl_6 is not. Why ? – InterviewSolution

1.	SF_6 is known but SCl_6 is not. Why ?
Answer» SOLUTION :This is due to (i) Small size of fluorine (ii) HIGH electronegativity of fluorine. Fluorine being highly electronegative can oxidize sulphur to (+6) oxidation STATE and can be accomodated easily due to its small size. Chlorine on the CONTRARY, cannot be accomodated due to its LARGE size. Thus, `SCl_6` does not exist.

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