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Q.

Which of the following is not correctly matched with number of P=O bonds?

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a

H4P2O7→2

b

H3PO3→1

c

H4P2O6→1

d

HPO33→3

answer is C.

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Detailed Solution

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see the structure of (HPO3)3 is below

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Hypoposphorus acid H3PO2 is also named as phosphinic acid.

Orthophosphorus acid H3PO3 is also known as phosphonic acid.

Metaphosphoric acid exists are cyclic trimer and linear polymer mainly.

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