What type of crystal defect is shown in figure given below?

Frenkel defect

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Schottky defect

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Interstitial defect

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Cation excess defect

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Solution

The correct option is B Schottky defect
In the given figure, two ${N a}^{+}$ & two ${C l}^{-}$ are absent.

In ionic crystals, the defect forms when oppositely charged ions leave their lattice sites, creating vacancies. These vacancies are formed in stoichiometric units, to maintain an overall neutral charge in the ionic solid.
So, the given figure shows Schottky defect.

Hence, option "B" is the correct answer.

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Similar questions

\begin{matrix} A^{+} & B^{-} & A^{+} & B^{-} & A^{+} B^{-} & O & B^{-} & A^{+} & B^{-} A^{+} & B^{-} & A^{+} & O & A^{+} B^{-} & A^{+} & B^{-} & A^{+} & B^{-} \end{matrix}

N a C l

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