MHT CET2019Morning ShiftChemistrySolid StateActual
Which among the following statements is true about Schottky defect?
Options
- AIn this defect cation an anion are lacking in stoichiometric proportion
- BFormation of metal ally is example of this defect
- CIn this cation or anion moves from regular site to place between lattice site
- DIn this regular cation is replace by different cation
Correct answer
A. In this defect cation an anion are lacking in stoichiometric proportion
Step-by-step solution
In Schottky defect, cation and anion are lacking in stoichiometric proportion. It is basically a vacancy defect in ionic solids. In order to maintain electrical neutrality, the number of missing cations and anions are equal. This defect can easily be illustrated by the following figure.