Question:
The crystal with metal deficiency defect is
The crystal with metal deficiency defect is
Updated On: Jun 6, 2022
- $NaCl$
- $FeO$
- $KCI$
- $ZnO$
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The Correct Option is B
Solution and Explanation
In FeO, as some Fe atoms may be present as ${Fe^{3+}}$ and for charge neutrality, ${3 \, Fe^{2+} = 2 \, Fe^{3+}}$, hence FeO would have metal deficiency 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.