Schottky defect in a crystal arises due to

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(A) Schottky defect is a type of vacancy defect in ionic solids,where an equal number of cations and anions are missing from their lattice sites to ma

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creation of equal number of cation and anion vacancies

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(A) Schottky defect is a type of vacancy defect in ionic solids,where an equal number of cations and anions are missing from their lattice sites to maintain electrical neutrality.This defect leads to a decrease in the density of the crystal.It is typically observed in ionic compounds where the cations and anions have similar sizes,such as $NaCl$ and $AgBr$.

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