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Question: Answered & Verified by Expert
Alkali halides do not show dislocation defect because
ChemistrySolid StateKCETKCET 2022
Options:
  • A anions cannot be accommodated in vacant spaces
  • B cations and anions have almost equal size
  • C there is large difference in size of cations and anions
  • D cations and anions have low coordination number
Solution:
2900 Upvotes Verified Answer
The correct answer is: cations and anions have almost equal size
Generally in alkali halides, cations and anions have almost equal size, thus they do not show dislocation defect.

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