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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2017
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Q)

Which is the incorrect statement ?


( A ) $NaCl(s)$ is insulator, silicon is semiconductor, silver is conductor, quartz is piezo electric crystal
( B ) $FeO_{0.98}$ has non stoichiometric metal deficiency defect
( C ) Frenkel defect is favoured in those ionic compounds in which sizes of cation and anions are almost equal
( D ) Density decreases in case of crystals with Schottky's defect

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