The Polyatomic Ion Known as the Diphosphate Ion Is an Important

question 41

Multiple Choice

The polyatomic ion known as the diphosphate ion is an important intermediate formed in metabolic processes.If the ionic compound calcium diphosphate has the formula Ca₂P₂O₇,which of the following correctly represents the symbol for the diphosphate ion?

• A)P₂O₇4−
• B)P₂O₇14-
• C)PO⁴⁺
• D)P₂O₇2−
• E)PO²⁻

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