Which one of the following compounds is not a | vedclass

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(B) protonic acid is a substance that can donate a proton ($H^+$ ion) in an aqueous solution.$SO_2(OH)_2$ (Sulfuric acid),$PO(OH)_3$ (Phosphoric acid)

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$B(OH)_3$

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(B) protonic acid is a substance that can donate a proton ($H^+$ ion) in an aqueous solution.$SO_2(OH)_2$ (Sulfuric acid),$PO(OH)_3$ (Phosphoric acid),and $SO(OH)_2$ (Sulfurous acid) all contain ionizable $H$ atoms attached to oxygen,which can be released as $H^+$ ions.$B(OH)_3$ (Boric acid) acts as a Lewis acid by accepting an $OH^-$ ion from water to form $[B(OH)_4]^-$,releasing $H^+$ from the water molecule,not from itself. Therefore,it is not a protonic acid.

Which one of the following compounds is not a protonic acid?

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