Which metal bicarbonates does not exist in solid state? (i) $$LiHCO_3$$ (ii) $$Ca(HCO_3)_2$$ (iii) $$Zn(HCO_3)_2$$ (iv) $$AgHCO_3$$
$$LiHCO_3$$ does not exist in solid state due to the high hydration enthalpy of $$Li^+$$ ion and its diagonal relation with $$Mg$$ from alkaline earth metal group where none of the metals bicarbonate exists in solid state.
Group 2 elements having more polarising power form covalent bonds, they tend to exist in aqueous solution only rather than solid.Thus $$Ca(HCO_3)_2$$ exist in aqueous solution only.
Further $$Zn(HCO_3)_2$$ and $$AgHCO_3$$ are soluble always and they exist as solutions always rather than alkali metal and ammonium salts of bicarbonate exist as solids.
In the following table are given eight elements, $$A, B, C, D, E, F, G$$ and $$H$$ (here letters are not the usual symbols of the elements) of the Modern Periodic Table with the atomic numbers of the elements in parenthesis. Period Group $$1$$ Group $$2$$ $$2$$ $$A(3)$$ $$E(4)$$ $$3$$ $$B(11)$$ $$F(12)$$ $$4$$ $$C(19)$$ $$G(20)$$ $$5$$ $$D(37)$$ $$H(38)$$ Out of the three elements $$B, E,$$ and $$F$$, which one has the biggest atomic size?
The metal carbonate which decomposes easily on heating is:
Which of the following does not exist in solid state?
The compound insoluble in acetic acid is :**
The correct order of the solubility of alkaline-earth metal sulphates in water is:
Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?
The decomposition temperature is maximum for:
Solubility of the alkaline earth's metal sulphates in water decreases in the sequence :
On heating which of the following $$CO_2$$ releases most easily?
Which one of the following alkaline earth metal carbonates is thermally the most stable?