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Question
Assertion :Frenkel defect is also called dislocation defect. Reason: Frenkel defect is shown by ionic substances in which cation and anion are almost similar sizes.
Assertion :Frenkel defect is also called dislocation defect. Reason: Frenkel defect is shown by ionic substances in which cation and anion are almost similar sizes.
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Solution
The correct option is C Assertion is correct but Reason is incorrect
- Frenkel
defect is one in which atom is displaced from its lattice point to interstitial
site, creating a vacancy at the lattice point. Here, since dislocation of atom
from the lattice point happens. So, it is also called as dislocation defect.
It is a kind of defect in crystalline solids in which atoms
are displaced from their lattice position to interstitial site creating vacancy
at the lattice point. It usually occurs in ionic solid with large difference in
size of ions. The density of crystal remains unchanged.
- Frenkel
defect is one in which atom is displaced from its lattice point to interstitial
site, creating a vacancy at the lattice point. Here, since dislocation of atom
from the lattice point happens. So, it is also called as dislocation defect.
It is a kind of defect in crystalline solids in which atoms are displaced from their lattice position to interstitial site creating vacancy at the lattice point. It usually occurs in ionic solid with large difference in size of ions. The density of crystal remains unchanged.
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