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Phosphorus has the oxidation state +3 in...

Phosphorus has the oxidation state `+3` in

A

phosphorous acid

B

orthophosphoric acid

C

hypophosphorous acid

D

metaphosphoric acid.

Text Solution

Verified by Experts

The correct Answer is:
A
(a) O.N. of P in HPO, (phosphorous acid) `3 xx 1 + x +3 xx (-2)=0 or x=+3`
In orthophosphoric acid `(H_3PO_4)` O.N. of P is +5, in hypophosphorous acid `(H_3PO_2)` it is + 1 while in metaphosphoric acid `(HPO_3)`, it is +5,
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DISHA PUBLICATION-REDOX REACTIONS-EXERCISE-1 : CONCEPT BUILDER ( TOPICWISE )
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  9. In which of the following compounds iron has lowest oxidation state?

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