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6 months, 4 weeks ago

The pair in which phosphorous atoms have a formal oxidation state of +3 is :

- Option 1)
Orthophosphorous and pyrophosphorous acids

- Option 2)
Pyrophosphorous and hypophosphoric acid

- Option 3)
Orthophosphorous and hypophosphoric acids

- Option 4)
Pyrophosphorous and pyrophosphoric acids

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As we learned

Hypophosphoric Acid -

H_{4}P_{2}O_{6 }(+4), tetrabasic

- wherein

Orthophosphoric Acid -

H_{3}PO_{4} (+5), tribasic

- wherein

Pyrophosphorous acid has the formula H_{4}P_{2}O_{5}

Oxidation state of P = +3

Orthophosphorous acid has the formula H_{3}PO_{3}

Oxidation state of P = +3

**Option 1)**

**Orthophosphorous and pyrophosphorous acids**

** **

Option 2)

Pyrophosphorous and hypophosphoric acid

Option 3)

Orthophosphorous and hypophosphoric acids

Option 4)

Pyrophosphorous and pyrophosphoric acids

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