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प्रश्न
Out of NaCl and AgCl, which one shows Frenkel defect and why?
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उत्तर
The Frenkel defect is that in which one smaller ion (usually cations) move from its lattice position to an interstitial site i.e. a tetrahedral octahedral hole to form a vacancy in the lattice. Of course, AgCl has the defect because the size of AgCl is intermediate and since the size of Ag+ cation is smaller than chloride ion so it can move to interstitial spaces causing Frenkel to defect while in NaCl (alkali metal halide) they have a larger size of cations which do not fit into voids and so the defect is not shown by the alkali metal halides.
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संबंधित प्रश्न
Explain the following term with a suitable example:
Interstitials
Give reasons : In stoichiometric defects, NaCl exhibits Schottky defect and not Frenkel defect.
What type of defect is shown by NaCl in
stoichiometric defects, and
Ionic solids containing large differences in sizes of ions show ____________.
Defect shown by non-ionic solids is ____________.
Point defect is also known as ____________.
The following diagram shows:
Assertion: No compound has both Schottky and Frenkel defects.
Reason: Both defects change the density of the solid.
Which of the following defects is also known as dislocation defect?
Schottky defect is noticed in ______
