Which of the following acids forms three series of salts?
A. `H_(3)PO_(2)`
B. `H_(3)BO_(3)`
C. `H_(3)PO_(4)`
D. `H_(3)PO_(3)`
A. `H_(3)PO_(2)`
B. `H_(3)BO_(3)`
C. `H_(3)PO_(4)`
D. `H_(3)PO_(3)`
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Correct Answer – C
`H_(3)PO_(4)` is a tribasic acid as it has 3P-OH bonds i.e., 3 ionisable H atoms thus, can form three series of salts.