s-Block ElementsHard

Question

Which does not exist in solid state.

Options

A.NaHCO3
B.NaHSO3
C.LiHCO3
D.CaCO3

Solution

Bigger HCO3- anion is polarised by smaller Li+ and thus readily decomposes to give CO2 gas. LiHCO3 does not exist in solid state this exist only in solution.

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