MCQ
Which of the following acid exist in polymeric form
- ✓$HP{O_3}$
- B${H_4}{P_2}{O_7}$
- C${H_3}P{O_4}$
- DNone of these

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$\left[ K _{ f } \text { of water }=1.86 \ K \ kg \ mol ^{-1}\right]$


