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The oxidation number of phosphorus in `Ba(H_(2)PO_(2))_(2)` is:-

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The oxidation number of phosphorus in `Ba(H_(2)PO_(2))_(2)` is:-
A. `-1`
B. `+1`
C. `+2`
D. `+3`
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Correct Answer - B
`Ba(H_(2)overset(**)(P)O_(2))_(2), BaH_(4) overset(**)(P)_(2)O_(4)`
`2+4+2x-8=0, 2x=2`
`x=2/2=+1`.
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