JIPMER2019ChemistrySolid State
Which type of defect present in NaCl ?
Options
- AFrenkel defect
- BSchottky defect
- CF-centre defect
- DNone of these
Correct answer
B. Schottky defect
Step-by-step solution
Key Idea Schottky defect is a vacancy defect in ionic solids. It is shown by those ionic substances in which the cations and anions are of almost similar sizes. Schottky defect is present in sodium chloride ( NaCl ) . This defect arises when equal number of cations and anions are missing from their lattice sites such that electrical neutrality is maintained. e.g. CsCl , NaCl , KCl , AgBr , etc.