Chemical formula for calcium pyrophosphate is `Ca_(2)P_(2)O_(7)`. The formula for ferric pyrophosphate will be

Options

A. `Fe_3(P_2O_7)_3`
B. `Fe_4P_4O_14`
C. `Fe_4(P_2O_7)_3`
D. `Fe_3PO_4`

Answer

C

Explanation

As the formula of calcium pyrophosphate is `Ca_2P_2O_7` means valency of pyrophosphate radical is 4  so formula of ferric pyrophosphate is `Fe_4(P_2O_7)_3`.