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Which of the following is a point imperfection;
1. vacency
2. frenkel defect
3. interstitialcy
4. Schottky defect
1. vacency
2. frenkel defect
3. interstitialcy
4. Schottky defect
- a)1 and 2 only
- b)2 and 3 only
- c)2, 3 and 4 only
- d)1, 2, 3 and 4
Correct answer is option 'D'. Can you explain this answer?
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Which of the following is a point imperfection;1. vacency2. frenkel de...
**Point imperfections in crystals**
Point imperfections, also known as point defects, are structural defects that occur at specific points within the crystal lattice of a solid material. These defects can significantly alter the properties of the material. There are several types of point imperfections, including vacancies, interstitials, Frenkel defects, and Schottky defects.
**1. Vacancy**
A vacancy is a point defect that occurs when an atom or ion is missing from its lattice site. This leads to an empty space in the crystal lattice. Vacancies can occur due to thermal vibrations or impurities in the material. Vacancies can affect the density, electrical conductivity, and diffusion of atoms in the crystal.
**2. Frenkel Defect**
A Frenkel defect is a point defect that occurs when an atom or ion is displaced from its lattice site and occupies an interstitial site within the crystal lattice. This defect is usually observed in compounds with a large difference in size between the cations and anions. Frenkel defects can affect the density, electrical conductivity, and optical properties of the material.
**3. Interstitialcy**
An interstitialcy is a point defect that occurs when an extra atom or ion occupies an interstitial site within the crystal lattice. This defect can occur due to high temperatures or impurities in the material. Interstitialcies can affect the density, mechanical properties, and diffusion of atoms in the crystal.
**4. Schottky Defect**
A Schottky defect is a point defect that occurs when a pair of oppositely charged ions is missing from their lattice sites. This defect is usually observed in ionic compounds and occurs to maintain charge neutrality within the crystal lattice. Schottky defects can affect the density, electrical conductivity, and mechanical properties of the material.
**Explanation of the correct answer**
The correct answer is option 'D' because all four options (vacancy, Frenkel defect, interstitialcy, and Schottky defect) are examples of point imperfections in crystals. Each of these defects involves the disruption of the crystal lattice structure at specific points, leading to changes in the material's properties. Therefore, all four options are correct.
Point imperfections, also known as point defects, are structural defects that occur at specific points within the crystal lattice of a solid material. These defects can significantly alter the properties of the material. There are several types of point imperfections, including vacancies, interstitials, Frenkel defects, and Schottky defects.
**1. Vacancy**
A vacancy is a point defect that occurs when an atom or ion is missing from its lattice site. This leads to an empty space in the crystal lattice. Vacancies can occur due to thermal vibrations or impurities in the material. Vacancies can affect the density, electrical conductivity, and diffusion of atoms in the crystal.
**2. Frenkel Defect**
A Frenkel defect is a point defect that occurs when an atom or ion is displaced from its lattice site and occupies an interstitial site within the crystal lattice. This defect is usually observed in compounds with a large difference in size between the cations and anions. Frenkel defects can affect the density, electrical conductivity, and optical properties of the material.
**3. Interstitialcy**
An interstitialcy is a point defect that occurs when an extra atom or ion occupies an interstitial site within the crystal lattice. This defect can occur due to high temperatures or impurities in the material. Interstitialcies can affect the density, mechanical properties, and diffusion of atoms in the crystal.
**4. Schottky Defect**
A Schottky defect is a point defect that occurs when a pair of oppositely charged ions is missing from their lattice sites. This defect is usually observed in ionic compounds and occurs to maintain charge neutrality within the crystal lattice. Schottky defects can affect the density, electrical conductivity, and mechanical properties of the material.
**Explanation of the correct answer**
The correct answer is option 'D' because all four options (vacancy, Frenkel defect, interstitialcy, and Schottky defect) are examples of point imperfections in crystals. Each of these defects involves the disruption of the crystal lattice structure at specific points, leading to changes in the material's properties. Therefore, all four options are correct.
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Which of the following is a point imperfection;1. vacency2. frenkel de...
D
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Which of the following is a point imperfection;1. vacency2. frenkel defect3. interstitialcy4. Schottky defecta)1 and 2 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer?
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Which of the following is a point imperfection;1. vacency2. frenkel defect3. interstitialcy4. Schottky defecta)1 and 2 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which of the following is a point imperfection;1. vacency2. frenkel defect3. interstitialcy4. Schottky defecta)1 and 2 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is a point imperfection;1. vacency2. frenkel defect3. interstitialcy4. Schottky defecta)1 and 2 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer?.
Which of the following is a point imperfection;1. vacency2. frenkel defect3. interstitialcy4. Schottky defecta)1 and 2 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which of the following is a point imperfection;1. vacency2. frenkel defect3. interstitialcy4. Schottky defecta)1 and 2 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is a point imperfection;1. vacency2. frenkel defect3. interstitialcy4. Schottky defecta)1 and 2 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer?.
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Which of the following is a point imperfection;1. vacency2. frenkel defect3. interstitialcy4. Schottky defecta)1 and 2 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Which of the following is a point imperfection;1. vacency2. frenkel defect3. interstitialcy4. Schottky defecta)1 and 2 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Which of the following is a point imperfection;1. vacency2. frenkel defect3. interstitialcy4. Schottky defecta)1 and 2 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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