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SF6 is known but SCl6 is not known. Expl...

`SF_6` is known but `SCl_6` is not known. Explain.

Text Solution

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Due to small size of S, six large C1 atoms cannot be accommodated around S atom. But small six F atoms can be easily accommodated around S atom to form `SF_6`. Moreover, because of low electronegativity of CI, it cannot easily cause promotion of electrons in S to form S (VI).
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