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

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1.	Polyprotic acids such as H₃PO₄, can act as acid-base buffers
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» E.

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