EAMCET Engineering 2009 Solved Paper

Section: Chemistry

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Question : 52 of 160

Marks: +1, -0

Which pair of oxyacids of phosphorus contains ' P−H ' bonds?

H3PO4,H3PO3
H3PO5,H4P2O7
H3PO3,H3PO2
H3PO2,HPO3

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