Choose the correct statements from the following
I) The oxidation state of phosphorous in hypophosphoric acid is +4
II) P–H bonds are present in orthophosphoric acid and pyrophosphoric acid
III) Metaphosphoric acid exists in polymeric form only

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I and II only

I and III only

I, II and III

II and III only

answer is D.

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Detailed Solution

I) The oxidation state of phosphorous in hypophosphoric acid is +4
II) P–H bonds are present in orthophosphoric acid and pyrophosphoric acid
III) Metaphosphoric acid exists in polymeric form only

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