Advertisements
Advertisements
Question
Cations are present in the interstitial sites in ______.
Options
Frenkel defect
Schottky defect
Vacancy defect
Metal deficiency defect
Advertisements
Solution
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 |
APPEARS IN
RELATED QUESTIONS
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
Out of NaCl and AgCl, which one shows Frenkel defect and why?
Defect shown by non-ionic solids is ____________.
Defects in solids can be studied using
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 ____________.
The following diagram shows:
Schottky defect defines imperfection in the lattice structure of ____________.
Which is not correct about the Schottky defects?
Assertion: No compound has both Schottky and Frenkel defects.
Reason: Both defects change the density of the solid.
Schottky defect is observed in crystals when ______.
Which of the following point defects are shown by AgBr(s) crystals?
- Schottky defect
- Frenkel defect
- Metal excess defect
- Metal deficiency defect
Frenkel defect is also known as:
(i) stoichiometric defect
(ii) dislocation defect
(iii) impurity defect
(iv) non-stoichiometric 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.
Schottky defect is noticed in ______
Which type of ‘defect’ has the presence of cations in the interstitial sites?
