AP EAMCET Engineering 2013 Solved Paper

Section: Chemistry

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Question : 62 of 160

Marks: +1, -0

Which one of the following is not correct?

Pyrophosphoric acid is a tetrabasic acid
Pyrophosphoric acid contains P—O—P linkage
Pyrophosphoric acid contains two P—H bonds
Orthophosphoric acid can be prepared by dissolving P4O10 in water

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