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प्रश्न
Frenkel defect is also known as:
(i) stoichiometric defect
(ii) dislocation defect
(iii) impurity defect
(iv) non-stoichiometric defect
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उत्तर
(i) stoichiometric defect
(ii) dislocation defect
Explanation:
In Frenkel defect, dislocation of cations takes place and there is no change in stoichiometry of the crystal.
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संबंधित प्रश्न
Give reasons : In stoichiometric defects, NaCl exhibits Schottky defect and not Frenkel defect.
Examine the given defective crystal:
Answer the following questions :
(i) What type of stoichiometric defect is shown by the crystal?
(ii) How is the density of the crystal affected by this defect?
(iii) What type of ionic substances show such defect?
Out of NaCl and AgCl, which one shows Frenkel defect and why?
Ionic solids containing large differences in sizes of ions show ____________.
Point defect is also known as ____________.
Frenkel defects are not found in alkali metal halides because ____________.
Assertion: No compound has both Schottky and Frenkel defects.
Reason: Both defects change the density of the solid.
Which of the following crystals does not exhibit Frenkel defect?
What is the effect of Frenkel defect on the density of ionic solids?
In a Schottky defect ____________.
Schottky defect is observed in crystals when ______.
Which of the following defects is also known as dislocation defect?
Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion: In any ionic solid (MX) with Schottky defects, the number of positive and negative ions are same.
Reason: Equal number of cation and anion vacancies are present.
If NaCl is doped with 10–4 mole percent of SrCl2 the concentration of cation vacancies will be
Schottky defect is noticed in ______
The incorrect statement about the imperfections in solids is ______.
