Perchloric acid is strongest acid, but weakest oxidising agent. Why? – InterviewSolution

1.	Perchloric acid is strongest acid, but weakest oxidising agent. Why?
Answer» Solution :`HClO_(4)` has `pK_(a) lt -10`. Its ability to provide proton is highest. This is due to resonance stabilisation of perchlorate ion. `CIO_(4)^(-)` has four CANNONICAL structures and six delocalised pi ELECTRONS. `CIO_(4)^(-)` is resonance stabilised. It does not furnish OXYGEN and hence a weak oxidant.

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