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Which of the following compounds contain phosphorus with an oxidation state of +5?

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in Chemistry – Class 12 by (188k points)
Which of the following compounds contain phosphorus with an oxidation state of +5?

(a) Peroxodiphosphoric acid

(b) Hypophosphorous acid

(c) Orthophosphorous acid

(d) Hypophosphoric acid

This question was posed to me in an online interview.

This key question is from P-Block Elements topic in portion P-Block Elements of Chemistry – Class 12

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Correct answer is (a) Peroxodiphosphoric acid

Easy explanation: The oxidation state of phosphorus in peroxodiphosphoric acid is +5. The oxidation state of phosphorus in hypo phosphorus acid is +1, in ortho phosphorous acid is +3 and in hypo phosphoric acid is +4.

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