English
Karnataka Board PUCPUC Science 2nd PUC Class 12

Which of the following defects is also known as dislocation defect?

Advertisements
Advertisements

Question

Which of the following defects is also known as dislocation defect?

Options

  • Frenkel defect

  • Schottky defect

  • Non-stoichiometric defect

  • Simple interstitial defect

MCQ
Advertisements

Solution

Frenkel defect

Explanation:

In Frenkel defect, some cations occupy interstitial site and hence it is also called dislocation defect.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Solid States - Exercises [Page 6]

APPEARS IN

NCERT Exemplar Chemistry Exemplar [English] Class 12
Chapter 1 Solid States
Exercises | Q I. 34. | Page 6

RELATED QUESTIONS

Explain the following term with suitable examples: 

Frenkel defect


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


 non-stoichiometric defects?


Out of NaCl and AgCl, which one shows Frenkel defect and why? 


Answer the following question.
What type of stoichiometric defect is shown by ZnS and why?


Defects in solids can be studied using


Point defect is also known as ____________.


The radius of Cs+ is 169 pm and Cl is 181 pm. The radius ratio is ____________.


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 ____________.


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 ______.


Frenkel defect is also known as:

(i) stoichiometric defect

(ii) dislocation defect

(iii) impurity defect

(iv) non-stoichiometric defect


Match the defects given in Column I with the statements in given Column II.

Column I Column II
(i) Simple vacancy defect (a) shown by non-ionic solids and increases density of the solid.
(ii) Simple interstitial defect (b) shown by ionic solids and decreases density of the solid.
(iii) Frenkel defect (c) shown by non ionic solids and density of the solid decreases.
(iv) Schottky defect (d) shown by ionic solids and density of the solid remains the same.

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.


The incorrect statement about the imperfections in solids is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×