Which of the following statements are correct in context of point defects in a crystal?

Question

Which of the following statements are correct in context of point defects in a crystal? (A) AgCl has anion Frenkel defect and CaF2 has Schottky defects (B) AgCl has cation Frenkel defects and CaF2 has anion Frenkel defects (C) AgCl and CaF2 have anion Frenkel defects (D) AgCl and CaF2 have Schottky defects

Tardigrade Admin · Accepted Answer

Since Ag+ (cation) is smaller than Cl- (anion) and hence cation is present in voids. In CaF2,Ca2+ is smaller.

Q. Which of the following statements are correct in context of point defects in a crystal?

$A g Cl$ has anion Frenkel defect and $C a F_{2}$ has Schottky defects

$A g Cl$ has cation Frenkel defects and $C a F_{2}$ has anion Frenkel defects

$A g Cl$ and $C a F_{2}$ have anion Frenkel defects

$A g Cl$ and $C a F_{2}$ have Schottky defects

Since $A g^{+}$ (cation) is smaller than $C l^{-}$ (anion) and hence cation is present in voids.
In $C a F_{2}, C a^{2 +}$ is smaller.

Q. Which of the following statements are correct in context of point defects in a crystal?

AgCl has anion Frenkel defect and CaF2​ has Schottky defects

AgCl has cation Frenkel defects and CaF2​ has anion Frenkel defects

AgCl and CaF2​ have anion Frenkel defects

AgCl and CaF2​ have Schottky defects

Since Ag+ (cation) is smaller than Cl− (anion) and hence cation is present in voids. In CaF2​,Ca2+ is smaller.

$A g Cl$ has anion Frenkel defect and $C a F_{2}$ has Schottky defects

$A g Cl$ has cation Frenkel defects and $C a F_{2}$ has anion Frenkel defects

$A g Cl$ and $C a F_{2}$ have anion Frenkel defects

$A g Cl$ and $C a F_{2}$ have Schottky defects

Since $A g^{+}$ (cation) is smaller than $C l^{-}$ (anion) and hence cation is present in voids.
In $C a F_{2}, C a^{2 +}$ is smaller.