Schottky defect in crystals is observed when:

unequal number of cations and anions are missing from the lattice

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equal number of cations and anions are missing from the lattice

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an ion leaves its normal site and occupies an interstitial site

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density of the crystal is increased

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Solution

The correct option is D equal number of cations and anions are missing from the lattice
Schottky defect is observed when equal number of cations and anions are missing from the lattice. This defect changes the density as a pair of ions are missing from the lattice.

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Similar questions

Schottky defect is observed in crystals when .....................

(a) some cations move from their lattice site to interstitial sites

(b) equal number of cation and anions are missing from the lattice

(d) some impurity is present in the lattice

Read the above assertion and reason and choose the correct statement regarding it.

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