Question
Examine the given defective crystal:
Answer the following questions:
  1. Is the above defect stoichiometric or non-stoichiometric?
  2. write the term used for the electron occupied site.
  3. Give an example of the compound which shows this type of defect.

Answer

  1. Non–Stoichiometric defect.
  2. F–Centre/Farbe Centre.
  3. NaCl is heated in an atmosphere of Na vapour/LiCl is heated in an atmosphere of Li vapour/KCl is heated in an atmosphere of K vapour.

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