A) Some complex metal oxides behave as superconductor
B) Zinc oxide can act as superconductor
C) An impurity of tetravalent germanium in trivalent gallium creates electron deficiency
D) A Frenkel defect is formed when an ion is displaced from its lattice site to an interstitial site
Correct Answer: D
Solution :
Frankel defect is formed by displacement of ion from its lattice site to interstitial state.
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