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प्रश्न
Give reasons : In stoichiometric defects, NaCl exhibits Schottky defect and not Frenkel defect.
उत्तर
Schottky defect is shown by the ionic solids having very small difference in their cationic and anionic radius whereas Frenkel defect is shown by ionic solids having large difference in their cationic and anionic radius. In this case the radius of both Na+ and Cl- have very small difference in their radius as a result of it NaCl will show schottky defect.
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संबंधित प्रश्न
Explain the following terms with suitable examples : Interstitials
Defects in solids can be studied using
Dislocation defect is also known as ____________.
Frenkel defects are not found in alkali metal halides because ____________.
The radius of Cs+ is 169 pm and Cl− is 181 pm. The radius ratio is ____________.
Type of stoichiometric defect shown by ZnS is ____________.
The following diagram shows:
Assertion: No compound has both Schottky and Frenkel defects.
Reason: Both defects change the density of the solid.
Cations are present in the interstitial sites in ______.
Which type of 'defect' has the presence of cations in the interstitial sites?
