NEET 2017 Physics and Chemistry

Question : 67 of 90

Marks: +1, -0

Which is the incorrect statement ?

[NEET 2017]

Density decreases in case of crystals with Schottky's defect
NaCl(s) is insulator, silicon is semiconductor, silver is conductor, quartz is piezo electric crystal
Frenkel defect is favoured in those ionic compounds in which sizes of cation and anions are almost equal
FeO0.98 has non stoichiometric metal deficiency defect

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