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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?
What is an impurity defect? What are its types? Explain the formation of vacancies through aliovalent impurity with example.
Give the classification of stoichiometric point defects.
What is a substitutional impurity defect?
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Which of the following is an example of substitutional impurity defect?
When a cation or anion from ionic solid leaves its regular lattice site and moves to occupy an interstitial site, it is called as ____________.
Which among the following statements is true about Schottky defect?
Which of the following pair of ionic crystals show Schottky defect?
Schottky defect in crystals is observed when ____________.
Which among the following defects is observed in Brass?
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Write the consequences of Schottky defect with reasons.
In which among the following solids, Schottky defect is not observed?
Explain the following term:
Interstitial impurity defect
Explain Self interstitial defect in elemental solid.
Explain the interstitial defect.
Give the disadvantages of a vacancy defect.
Identify the type of defect from following in stainless steel.
