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प्रश्न
Which of the following defects is also known as dislocation defect?
विकल्प
Frenkel defect
Schottky defect
Non-stoichiometric defect
Simple interstitial defect
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उत्तर
Frenkel defect
Explanation:
In Frenkel defect, some cations occupy interstitial site and hence it is also called dislocation defect.
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संबंधित प्रश्न
Explain the following term with suitable examples:
Frenkel defect
Explain the following term with a suitable example:
Interstitials
Answer the following question.
What type of stoichiometric defect is shown by ZnS and why?
Ionic solids containing large differences in sizes of ions show ____________.
Defect shown by non-ionic solids is ____________.
Point 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 ____________.
Schottky defect defines imperfection in the lattice structure of ____________.
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?
Silver halides generally show:
What is the effect of Frenkel defect on the density of ionic solids?
Cations are present in the interstitial sites in ______.
Which of the following statements are not true?
(i) Vacancy defect results in a decrease in the density of the substance.
(ii) Interstitial defects results in an increase in the density of the substance.
(iii) Impurity defect has no effect on the density of the substance.
(iv) Frankel defect results in an increase in the density of the substance.
Which of the following defects decrease the density?
(i) Interstitial defect
(ii) Vacancy defect
(iii) Frankel defect
(iv) Schottky defect
Why is FeO (s) not formed in stoichiometric composition?
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.
Given below are two statements:
Statements I: Frenkel defects are vacancy as well as interstitial defects.
Statements II: Frenkel defect leads of colour in ionic solids due to the presence of F-centers.
Choose the most appropriate answer for the statements from the options given below:
