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$$\ce{(i) LiHCO_3 (ii) Ca(HCO_3)_2 ​ (iii) Zn(HCO_3)_2 ​ (iv) AgHCO_3}$$ From my prior knowledge compounds i and ii are not solids because of the high hydration energy of Li and the high polarizing power of Ca respectively. But the answer to this question includes both options iii and iv. Which property makes them not solid/exist in solution state?

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  • $\begingroup$ Regarding LiHCO3, see these questions: chemistry.stackexchange.com/questions/73575/… .... chemistry.stackexchange.com/questions/69331/… $\endgroup$ Nov 18, 2020 at 4:02
  • $\begingroup$ Too bad your teacher forgot to give you his list that you can learn by heart. What a moronic multiple choice question. $\endgroup$
    – Karl
    Nov 18, 2020 at 7:59
  • $\begingroup$ The only existing carbonate at the solid state is LiHCO3. $\endgroup$
    – Maurice
    Nov 18, 2020 at 9:08
  • $\begingroup$ @Maurice LiHCO3 does not exist in solid state $\endgroup$ Nov 18, 2020 at 11:02
  • $\begingroup$ @Singularity. The Handbook of Chemistry and Physics, 43 rd Ed, p. 597, informs that LiHCO3 is white and its solubility is 5.5 g in 100 mL water at 13°C. $\endgroup$
    – Maurice
    Nov 18, 2020 at 17:04

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