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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| List $I$ | List $II$ | ||
| $A$ | $\alpha$-Glucose and $\alpha-$Galactose | $I$ | Functional isomers |
| $B$ | $\alpha$-Glucose and $\beta-$-Galactose | $II$ | Homologous |
| $C$ | $\alpha$-Glucose and $\alpha$-Galactose | $III$ | Anomers |
| $D$ | $\alpha$-Glucose and $\alpha$-Galactose | $IV$ | Epimers |
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