Which of the following acids forms three series of salts ?

1.	Which of the following acids forms three series of salts ?
Answer» `H_(3)PO_(2)` `H_(3)BO_(3)` `H_(3)PO_(4)` `H_(3)PO_(3)` SOLUTION :`H_(3)PO_(4)` has three OH GROUPS, i.e., has three ionizable H-atoms and hence and hence forms three series of saltes.

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