Which is not correct about the Schottky defects?
- ABoth cations and anions are missing from their lattice sites without affecting the stoichiometry of the compound.
- BBecause of presence of holes the lattice energy decreases.
- CThe presence of holes causes the density of the crystal to decrease.
- DThe defect increases the electrical conductivity of the solid due to migration of the ions into the holes.
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As a result of Schottky defect,the density of the crystal:
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View SolutionWhen $SrCl_2$ is added to molten $NaCl$ and crystallized,the defect formed is ........
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View SolutionAnalysis of the density of an electrically neutral $NaCl$ crystal containing vacancies yielded the following results:
$(i)$ Density of $NaCl$ crystal with all sites occupied $= 2.178 \times 10^3 \ kg \ m^{-3}$
$(ii)$ Density of $NaCl$ crystal with vacancies $= 2.165 \times 10^3 \ kg \ m^{-3}$
Then the percentage of vacancies in the $NaCl$ crystal is .....
$(i)$ Density of $NaCl$ crystal with all sites occupied $= 2.178 \times 10^3 \ kg \ m^{-3}$
$(ii)$ Density of $NaCl$ crystal with vacancies $= 2.165 \times 10^3 \ kg \ m^{-3}$
Then the percentage of vacancies in the $NaCl$ crystal is .....
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View SolutionIn an ionic crystal,$F$-centers are.....
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View SolutionIf molten $NaCl$ contains $SrCl_2$ as impurity,crystallization can generate
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