Which one of the following compound is not a protonic acid [CBSE PMT 2003]

Which one of the following compound is not a protonic acid

1.	Which one of the following compound is not a protonic acid [CBSE PMT 2003]
A.	\[S{{O}_{2}}{{(OH)}_{2}}\]
B.	\[B{{(OH)}_{3}}\]
C.	\[PO{{(OH)}_{3}}\]
D.	\[SO{{(OH)}_{2}}\]
Answer» C. \[PO{{(OH)}_{3}}\]

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Which one of the following compound is not a protonic acid [CBSE PMT 2003]

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