AIPMT 2012 Physics and Chemistry Paper

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Question : 91 of 100

Marks: +1, -0

Which of the following statements is not valid for oxoacids of phosphorus ?

Orthophosphoric acid is used in the manufacture of triple superphosphate
Hypophosphorous acid is a diprotic acid
All oxoacids contain tetrahedral four coordinated phosphorus
All oxoacids contain atleast one P=O unit and one P−OH group

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