NEET Chemistry The Solid State Questions Solved

Which is the incorrect statement?

(a) FeO0.98 has non-stoichiometric metal excess defect

(b) Density decreases in case of crystals with Schottky's defect

(c) NaCI(s) is insulator, silicon is semiconductor, silver is conductor, quartz is piezoelectric crystal

(d) Frenkel defect is favoured in those ionic compounds in which sizes of cation and anions are almost equal

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