Chemical Bonding And Molecular Structure Question 137

Question: Chemical formula for calcium pyrophosphate is $ 120^{o} $ The formula for ferric pyrophosphate will be [NCERT 1977]

Options:

A) $ Fe_3{{(P_2O_7)}_3} $

B) $ Fe_4P_4O_{14} $

C) $ Fe_4{{(P_2O_7)}_3} $

D) $ Fe_3PO_4 $

Show Answer

Answer:

Correct Answer: C

Solution:

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} $ .



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