Question

(a) Arrange the following compounds in the increasing order of solubility in water: 

(i) Mg(OH)₂ , Be(OH)₂ , Ba(OH)₂ , Ca(OH)₂ , Sr(OH)₂ 

(ii) SrSO₄ , MgSO₄ , BeSO₄ , BaSO₄, CaSO₄ 

(b) (i) Write the difference between lime water and milk of lime. 

(ii) Complete the following reaction.

Answer 1

(a)(i) Be(OH)₂ < Mg(OH)₂ < Ca(OH)₂ < Sr(OH)₂ < Ba(OH)₂

(ii) BaSO₄ < SrSO₄ < CaSO₄ < MgSO₄ < BeSO₄

(b) (i) A clear solution of calcium hydroxide in water is called lime water. A suspension of calcium hydroxide in water is called milk of lime,