Compounds with low coordination numbers of ca | vedclass

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(C) Frenkel defect is observed in ionic crystals where there is a large difference in the size of the ions.It occurs in compounds where the cation is

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Highly polarizable cation and easily polarizable anion

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(C) Frenkel defect is observed in ionic crystals where there is a large difference in the size of the ions.It occurs in compounds where the cation is much smaller than the anion.Due to the small size of the cation,it can easily leave its lattice site and occupy an interstitial site.This process is favored by a high degree of polarization,where the cation is highly polarizable (or has high polarizing power) and the anion is easily polarizable.Therefore,the correct condition is that the compound has a highly polarizing cation and an easily polarizable anion.

Compounds with low coordination numbers of cations and anions exhibit Frenkel defects because the compound has ................

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