Polyprotic acids such as H₃PO₄, can act as acid-base buffers Options: A . &nbsponly in combination with polyprotic bases B . &nbspif their concentration is kept low C . &nbspat pH values around neutrality D . &nbspat pH values around any of their pKa's

Polyprotic acids such as H₃PO₄, can act as acid-base buffers

Question

Polyprotic acids such as H₃PO₄, can act as acid-base buffers

Options:

A . only in combination with polyprotic bases

B . if their concentration is kept low

C . at pH values around neutrality

D . at pH values around any of their pKa's

Answer: Option D
Answer: (d).at pH values around any of their pKa's

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