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Defects are basically irregularities in ...

Defects are basically irregularities in the arrangement of constituent particles. Broadly speaking the defects are of two types. Namely point defects and line defects.
Point defects: The irregularities or deviations from ideal arrangement around a point or an atom in the crystalline substance.
Line defects: The irregularities or deviations from ideal arrangement in entire row of lattice points.
Answer the following question.
Select the correct statements :
Frenkel defect create a vacancy defect at its original site and an interstitial defect at its new position.
Frenkel defect is also called dislocation defect
Silver halide shows Frenkel defect

A

`(ii),(iii),(iv)only`

B

`(i),(ii),(iii)only`

C

`(i),(ii),(iii),(iv)`

D

`(i),(ii),(iv)only`

Text Solution

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The correct Answer is:
C
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Defects are basically irregularities in the arrangement of constituent particles. Broadly speaking the defects are of two types. Namely point defects and line defects. Point defects: The irregularities or deviations from ideal arrangement around a point or an atom in the crystalline substance. Line defects : The irregularities or deviations from ideal arrangement in enitre row of lattice points. Answer the following questions. Select the correct statements : (i) Frenkel defect create a vacancy defect at its original site and an interstitial defect at its new position. (ii) Frenkel defect is stoichiometric point defect. (iii) Frenkel defect is alos called dislocation defect. (iv) Silver halide shows Frenkel defect.

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Assertion (A) : Point defects are the irregularities or deviations from ideal arrangement around a point in a crystalline substance. Reason (R) : Schottky defect is basically a vacancy defect in ionic solids.

What is point defect?

which of the follwing defects is also known as dislocation defect ?

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