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प्रश्न
Cations are present in the interstitial sites in ______.
विकल्प
Frenkel defect
Schottky defect
Vacancy defect
Metal deficiency defect
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उत्तर
Cations are present in the interstitial sites in frenkel defect.
Explanation:
| Defect | Definition | Type of solid |
Effect of defect on density of substance |
Structure of crystal (with defect) |
| Frenkel Defect or dis- location defect |
A crystal is said to have Frenkel defect if cation is missing from the normal lattice position and is occupying interstitial site. |
Ionic solid |
Remain same |
 Frenkel defect |
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संबंधित प्रश्न
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?
What type of defect is shown by NaCl in
stoichiometric defects, and
non-stoichiometric defects?
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 ____________.
Dislocation defect is also known as ____________.
Type of stoichiometric defect shown by ZnS is ____________.
Type of stoichiometric defect shown by AgBr is ____________.
Schottky defect defines imperfection in the lattice structure of ____________.
In a Schottky defect ____________.
Schottky defect is observed in crystals when ______.
Which of the following defects is also known as dislocation 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.
Schottky defect is noticed in ______
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:
The incorrect statement about the imperfections in solids is ______.
Which type of ‘defect’ has the presence of cations in the interstitial sites?
