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Oxidiation states of P in H_{4}P_{2}O_{5}, H_{4}P_{2}O_{6}, and H_{4}P_{2}O_{7}, are respectively

  • Option 1)

    +3, +5, +4

  • Option 2)

    +5, +3, +4

  • Option 3)

    +5, +4, +3

  • Option 4)

    +3, +4, +5

 

Answers (1)

As learnt

Hypophosphoric Acid -

H4P2O6 (+4), tetrabasic

- wherein

Hyphophosphoric Acid

 

 

 

Phosphorus Acid -

H3PO3 (+3), dibasic

- wherein

Phosphorus Acid

 

 

 

Orthophosphoric Acid -

H3PO4 (+5), tribasic

- wherein

Orthophosphoric acid

 

 

H_{4}P_{2}O_{5} , let x be the O.S. of P

then, 4+2x+5(-2)=0

       \Rightarrow x= +3

H_{4}P_{2}O_{6} , let x be the O.S. of P

then, 4+2x+6(-2)=0

        \Rightarrow x= +4

H_{4}P_{2}O_{7} , let x be the O.S. of P

then, 4+2x+7(-2)=0

\Rightarrow x= +5

 

 


Option 1)

+3, +5, +4

This option is incorrect

Option 2)

+5, +3, +4

This option is incorrect

Option 3)

+5, +4, +3

This option is incorrect

Option 4)

+3, +4, +5

This option is correct

Posted by

Vakul

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