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How would you account for the following:...

How would you account for the following:
(i) Sulphur hexafluoride is less reactive than sulphur tetrafluoride.
(ii) Of the noble gases only xenon forms known chemical compounds.

Text Solution

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(i) `SF_6` is more stable due to less repulsion in `SF_6` as compared to `SF_4`
(ii) It is due to large atomic size and high polarisability of Xenon. Xenon has comparatively small ionisation enthalpy.
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