P-Block Elements Ques 564

Question: The number of $ P-OH $ bonds and the oxidation state of phosphorus atom in pyrophosphoric acid $ (H_4P_2O_7) $ respectively are:

Options:

A) four and four

B) five and four

C) five and five

D) four and five

Show Answer

Answer:

Correct Answer: D

Solution:

Oxidation State: Each P atom is bound to one oxygen $ =-1 $ $ 2OH=-1\times 2=-2 $ $ 1Oxygen=-2 $ $ Total=-5 $ P=+5.



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