Question:
Frenkel defect is generally observed in
Frenkel defect is generally observed in
Updated On: Sep 3, 2024
- AgBr
- AgI
- ZnS
- All of the above
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The Correct Option is D
Solution and Explanation
Frenkel defect is generally observed when the size of cation is much smaller than the anion. Hence, $AgBr,\, AgI$ and $ZnS$ all exhibit Frenkel defect.
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Concepts Used:
Imperfections in Solids
Any irregularity in the pattern of crystal arrangement in a solid lattice is called imperfection in solids. The occurrence of defects takes place when crystallization (the process of formation of crystals) occurs at a very fast or at an intermediate rate.
Basically, defects fall out in two forms:
- Point Defect
When the irregularities exist from the ideal arrangement around a point or an atom in solids, the defect is known as a point defect. Types of point defects are:
- Stoichiometric defects
- Non-stoichiometric defects
- Impurity defects
- Line Defect
When the deviation from the ideal arrangement exists in the entire row of lattice points, the defect is called line defect.