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NEET levelSingle correct optionDifficulty 1 of 3ss184

The effect of Schottky defects on the density of an ionic crystal is that the density

  1. Afirst increases then decreases
  2. Bremains unchanged
  3. Cincreases
  4. Ddecreases

Answer: D

Schottky defects remove equal numbers of cations and anions from the lattice, so mass falls while the volume stays the same. The density therefore decreases.
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