Identifying the products of chemical reactions

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Question 20
Easy

Pyrophosphoric acid contains pyrophosphate ions, P2O74−\text{P}_2\text{O}_7^{4-}P2​O74−​.

Pyrophosphoric acid is completely neutralised by iron(III) hydroxide.

What is the formula of the salt that is produced?

Fe3(P2O7)4\text{Fe}_3(\text{P}_2\text{O}_7)_4Fe3​(P2​O7​)4​

Fe(P2O7)3\text{Fe}(\text{P}_2\text{O}_7)_3Fe(P2​O7​)3​

Fe4(P2O7)3\text{Fe}_4(\text{P}_2\text{O}_7)_3Fe4​(P2​O7​)3​

Fe3P2O7\text{Fe}_3\text{P}_2\text{O}_7Fe3​P2​O7​

Identifying the products of chemical reactions Questions

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