Question

1. NaCl shows mainly Schottky defect and AgCl shows Frenkel defect. Do you agree with this statement? Justify.

2. Classify the following solids into isotropic and anisotropic. Polyvinylchloride, Rubber, Glucose, Glass

Answer 1

1. Yes. In NaCl, both Na⁺ and Cl^- are of almost same size and hence it shows Schottky defect. But in AgCl, Ag⁺ is smaller than Cf. Hence, it shows Frenkel defect.

2. Anisotropic-Glucose

Isotropic – Glass, Rubber, 

Polyvinylchloride