question_answer 67)

  Cations are present in the interstitial sites in......... . (a) Frenkel defect            (b) Schottky defect (c) vacancy defect           (d) metal deficiency                                                  Defect

Answer:

                                           (a) When smaller ion (usually cation) is dislocated from its normal site in crystal and move to interstitial site is known as Frenkel defect as shown below