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Alkali halides do not show Frenkel defect because
- a)Cations and anions have almost equal size
- b)There is a large difference in size of cations and anions
- c)Cations and anions have low coordination number
- d)Anions cannot be accommodated in voids
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Alkali halides do not show Frenkel defect becausea)Cations and anions ...
Frenkel defect is not shown by alkali metals because cations and anions have almost same size and cations cannot be accommodated in interstitial sites.
Most Upvoted Answer
Alkali halides do not show Frenkel defect becausea)Cations and anions ...
Explanation:
Alkali halides are ionic compounds that consist of cations and anions. Frenkel defect is a type of point defect that arises due to the displacement of cations from their lattice sites to interstitial sites. However, alkali halides do not show Frenkel defect due to the following reasons:
Size of Cations and Anions:
The sizes of cations and anions in alkali halides are almost equal. For example, the size of Na+ ion (0.102 nm) is comparable to that of Cl- ion (0.181 nm). Due to this similarity in size, it is difficult for the cations to move to the interstitial sites as the interstitial sites are very small. Hence, cations do not leave their lattice sites, and hence, Frenkel defect does not occur.
Coordination Number:
The coordination number of cations and anions in alkali halides is high. For example, the coordination number of Na+ ion is 6 and that of Cl- ion is also 6. Due to this high coordination number, there are very few interstitial sites available for the cations to move to. Hence, cations do not leave their lattice sites, and hence, Frenkel defect does not occur.
Conclusion:
Thus, we can conclude that alkali halides do not show Frenkel defect due to the almost equal size of cations and anions and the high coordination number of cations and anions.
Alkali halides are ionic compounds that consist of cations and anions. Frenkel defect is a type of point defect that arises due to the displacement of cations from their lattice sites to interstitial sites. However, alkali halides do not show Frenkel defect due to the following reasons:
Size of Cations and Anions:
The sizes of cations and anions in alkali halides are almost equal. For example, the size of Na+ ion (0.102 nm) is comparable to that of Cl- ion (0.181 nm). Due to this similarity in size, it is difficult for the cations to move to the interstitial sites as the interstitial sites are very small. Hence, cations do not leave their lattice sites, and hence, Frenkel defect does not occur.
Coordination Number:
The coordination number of cations and anions in alkali halides is high. For example, the coordination number of Na+ ion is 6 and that of Cl- ion is also 6. Due to this high coordination number, there are very few interstitial sites available for the cations to move to. Hence, cations do not leave their lattice sites, and hence, Frenkel defect does not occur.
Conclusion:
Thus, we can conclude that alkali halides do not show Frenkel defect due to the almost equal size of cations and anions and the high coordination number of cations and anions.
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Alkali halides do not show Frenkel defect becausea)Cations and anions have almost equal sizeb)There is a large difference in size of cations and anionsc)Cations and anions have low coordination numberd)Anions cannot be accommodated in voidsCorrect answer is option 'A'. Can you explain this answer?
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Alkali halides do not show Frenkel defect becausea)Cations and anions have almost equal sizeb)There is a large difference in size of cations and anionsc)Cations and anions have low coordination numberd)Anions cannot be accommodated in voidsCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Alkali halides do not show Frenkel defect becausea)Cations and anions have almost equal sizeb)There is a large difference in size of cations and anionsc)Cations and anions have low coordination numberd)Anions cannot be accommodated in voidsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Alkali halides do not show Frenkel defect becausea)Cations and anions have almost equal sizeb)There is a large difference in size of cations and anionsc)Cations and anions have low coordination numberd)Anions cannot be accommodated in voidsCorrect answer is option 'A'. Can you explain this answer?.
Alkali halides do not show Frenkel defect becausea)Cations and anions have almost equal sizeb)There is a large difference in size of cations and anionsc)Cations and anions have low coordination numberd)Anions cannot be accommodated in voidsCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Alkali halides do not show Frenkel defect becausea)Cations and anions have almost equal sizeb)There is a large difference in size of cations and anionsc)Cations and anions have low coordination numberd)Anions cannot be accommodated in voidsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Alkali halides do not show Frenkel defect becausea)Cations and anions have almost equal sizeb)There is a large difference in size of cations and anionsc)Cations and anions have low coordination numberd)Anions cannot be accommodated in voidsCorrect answer is option 'A'. Can you explain this answer?.
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