MCQ
Chemical formula for calcium pyrophosphate is $C{a_2}{P_2}{O_7}$ The formula for ferric pyrophosphate will be
- A$F{e_3}{({P_2}{O_7})_3}$
- B$F{e_4}{P_4}{O_{14}}$
- ✓$F{e_4}{({P_2}{O_7})_3}$
- D$F{e_3}P{O_4}$
✓
Answer
Correct option: C.
$F{e_4}{({P_2}{O_7})_3}$
(c) As the formula of calcium pyrophosphate is $C{a_2}{P_2}{O_7}$ means valency of pyrophosphate radical is $-4$ so formula of ferric pyrophosphate is $F{e_4}{\left( {{P_2}{O_7}} \right)_3}$.
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