Question

(i) Based on the nature of intermolecular forces, classify the following solids: Sodium sulphate, Hydrogen 

(ii) What happens when CdCl₂ is doped with AgCl ? 

(iii) Why do ferrimagnetic substances show better magnetism than antiferromagnetic substances ?

Answer 1

(i) Na₂SO₄ : Ionic, H₂ : Molecular

(ii) Impurity defect/Schottky defect

(iii) In ferrimagnetism, domains/magnetic moments are aligned in opposite direction in unequal numbers while in antiferromagnetic the domains align in opposite direction in equal numbers so they cancel magnetic moments completely, net magnetism is zero/ diagrammatic explanation.