Chemistry, asked by umangve30, 9 months ago

plzz ans. help please

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Answered by litleangel143

1

Answer:

oxidation state of phosphorous in

H3PO3 is 3
Po4^-3 is +5
H3PO2 is +1
PH3 is -3

PH3 <H3PO2<H3PO3<PO4^-3

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