Explain the following giving an appropriate reason in each case.
(i) `O_(2)` and `F_(2)` both stabilize higher oxidation states of metals but `O_(2)` exceeds `F_(2)` in doing so.
(ii) Structure of Xenon fluorides cannot be explained by Valence Bond approach.

Explanation

(i) The ability of `O_(2)` to stabilise higher oxidation states exceeds that of fluorine because oxygen can form multiple bonds with metals.
(ii) According to VBT if electrons in an orbital are raised (especially of noble gases) then they do not participate in bond formation or (undergo hydridisation).