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Karnataka Board PUCPUC Science 2nd PUC Class 12

Explain the following terms with suitable examples: Frenkel defect - Chemistry

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Question

Explain the following terms with suitable examples: Frenkel defect

Solution

Frenkel defect: Ionic solids containing large differences in the sizes of ions show this type of defect. When the smaller ion (usually cation) is dislocated from its normal site to an interstitial site, Frenkel defect is created. It creates a vacancy defect as well as an interstitial defect. Frenkel defect is also known as dislocation defect. Ionic solids such as AgCl, AgBr, AgI, and ZnS show this type of defect.

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Chapter 1: The Solid State - Exercises [Page 32]

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NCERT Chemistry [English] Class 12
Chapter 1 The Solid State
Exercises | Q 23.2 | Page 32

RELATED QUESTIONS

Give reasons : In stoichiometric defects, NaCl exhibits Schottky defect and not Frenkel defect.


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(iii) What type of ionic substances show such defect?


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