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प्रश्न
Explain the following term:
Substitutional impurity defect
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उत्तर
Substitutional impurity defect: In this defect, the foreign atoms are found at the lattice sites in place of host atoms. The regular atoms are displaced from their lattice sites by impurity atoms.
For example :
- Solid solutions of metals (alloys): Brass is an alloy of Cu and Zn. In brass, host Cu atoms are replaced by the impurity of Zn atoms. The Zn atoms occupy regular sites of Cu atoms as shown in the figure.
 Brass |
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संबंधित प्रश्न
What are the consequences of the Schottky defect in crystals?
Explain with diagram, the vacancy defect.
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Give the classification of stoichiometric point defects.
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Explain solid solutions of metals and vacancy through aliovalent cations.
Which among the following solids shows Frenkel defect?
Which of the following match is CORRECT?
(I) Frenkel defect: Electrical neutrality of the compound is preserved.
(II) Schottky defect: Density of the substance decreases.
(III) Schottky defect: Combination of vacancy defect and interstitial defect.
(IV) Frenkel defect: Small difference between size of cation and anion.
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AgBr shows which type of defect?
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When electrons are trapped into the crystal in anion vacancy, the defect is known as ______.
Explain the following term:
Interstitial impurity defect
Explain Self interstitial defect in elemental solid.
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What is a vacancy defect?
What are point defects?
