(A) Schottky defect is a type of point defect in ionic crystals where an equal number of cations and anions are missing from their lattice sites.This

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High coordination number and similar sizes

(A) Schottky defect is a type of point defect in ionic crystals where an equal number of cations and anions are missing from their lattice sites.This defect is typically observed in ionic compounds that have a $High \ coordination \ number$ and where the sizes of the cations and anions are $similar$ (i.e.,the radius ratio is close to $1$).Examples include $NaCl$,$KCl$,and $CsCl$.

Class 12 Chemistry Solid State Defects in crystal

Medium

Which relationship is correct regarding the coordination number and the size of cations and anions in ionic compounds exhibiting Schottky defect?

A
High coordination number and similar sizes
B
Low coordination number and dissimilar sizes
C
High coordination number and dissimilar sizes
D
Low coordination number and similar sizes

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Solid State

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Defects in crystal

$NaCl$ is doped with $2 \times 10^{-3} \, mol \% \, SrCl_2$. What is the concentration of cation vacancies?

Difficult

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Assertion : No compound has both Schottky and Frenkel defects.
Reason : Both defects change the density of the solid.

DifficultAIIMS 2008

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Experimentally,it was found that a metal oxide has the formula $M_{0.98}O$. The metal $M$ is present as $M^{2+}$ and $M^{3+}$ in its oxide. The fraction of the metal which exists as $M^{3+}$ would be: .................... $\%$

DifficultJEE MAIN 2013

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Which of the following is $NOT$ true for Schottky defect?

Easy

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$A$ metallic solid undergoes Frenkel defect. Its original mass,volume and density are $M_0$,$V_0$ and $D_0$ respectively. After Frenkel defect the mass,volume and density are $M$,$V$ and $D$ respectively. The variations of $M$,$V$ and $D$ after Frenkel defect are

MediumAP EAMCET 2020

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Which relationship is correct regarding the coordination number and the size of cations and anions in ionic compounds exhibiting Schottky defect?

Similar Questions

$NaCl$ is doped with $2 \times 10^{-3} \, mol \% \, SrCl_2$. What is the concentration of cation vacancies?

Assertion : No compound has both Schottky and Frenkel defects.Reason : Both defects change the density of the solid.

Experimentally,it was found that a metal oxide has the formula $M_{0.98}O$. The metal $M$ is present as $M^{2+}$ and $M^{3+}$ in its oxide. The fraction of the metal which exists as $M^{3+}$ would be: .................... $\%$

Which of the following is $NOT$ true for Schottky defect?

$A$ metallic solid undergoes Frenkel defect. Its original mass,volume and density are $M_0$,$V_0$ and $D_0$ respectively. After Frenkel defect the mass,volume and density are $M$,$V$ and $D$ respectively. The variations of $M$,$V$ and $D$ after Frenkel defect are

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Assertion : No compound has both Schottky and Frenkel defects.
Reason : Both defects change the density of the solid.