How would you explain?BaO is soluble but `BaSO_4` is insoluble in water.

How would you explain? BeO is insoluble but BeSO_4 is soluble in water.

BeO is almost insoluble but BeSO_4 is soluble in water. Why?

How would you explain? Lil is more soluble than KI in ethanol.

Why is it that 'BeSO_4' and 'MgSO_4' are soluble but 'BaSO_4' is insoluble in water?

How would you explain the following observation? Lil is more soluble than KI in ethanol.

How would you explain that the first ionisation energy of Na is lawer than that of Mg but is second inoisation enthalpy is higher than that of Mg ?

Haloarenes are insoluble in water but soluble in benzene.