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H₃PO₂ is the formula for one of the phosphorus acids. Its name and basicity are respectively

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hypophosphoric acid and two

phosphorous acid and two

hypophosphorous acid and two

hypophosphorous acid and one

answer is C.

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Detailed Solution

H₃PO₂ is named as hypo phosphorous acid.
As it contains only one P−OH group, its basicity is one.

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