Right answer is (a) Li
Li is capable of forming hydrated salts because of its size. Since it is smaller in size, it has a higher charge density and can easily attract water molecules around it and for hydrated salts like LiCl.2H2O. The other alkali metals have a bigger size and lesser charge density and thus aren’t capable of forming hydrated salts.
Answered by Abhisek | 1 year agoWhich one of the alkaline earth metal carbonates is thermally the most stable?
(a) MgCO3
(b) CaCO3
(c) SrCO3
(d) BaCO3
Which of the following alkali metals has the least melting point?
(a) Na
(b) K
(c) Rb
(d) Cs
How would you explain the following observations?
(i) BeO is almost insoluble but BeSO4 is insoluble in water.
(ii) BaO is soluble but BaSO4 is insoluble in water.
(iii) LiI is more soluble than KI in ethanol.
Write balanced equations for reactions between:
(a) Na2O2 and water
(b) KO2 and Water
(c) Na2O and CO2
Sodium is found to be more useful than potassium?