Write balanced equations for reactions between:
(a) Na2O2 and water
(b) KO2 and Water
(c) Na2O and CO2
(a) 2Na2O2(s) + 2H2O(l) → 4NaOH(aq) + O2(aq)
(b) 2KO2(s) + 2H2O(l) → 2KOH(aq) + H2O2(aq) + O2(aq)
(c) Na2O(s) + CO2(g) → Na2CO3
Which one of the alkaline earth metal carbonates is thermally the most stable?
Which one of the following alkali metals gives hydrated salts?
Which of the following alkali metals has the least melting point?
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.
Sodium is found to be more useful than potassium?