NEET levelSingle correct optionDifficulty 1 of 3ss093
Which of the following defects does not change the density of the crystal?
ASchottky defect
BFrenkel defect
CMetal deficiency defect
DVacancy of both ions
Answer: B
In a Frenkel defect an ion moves from its lattice site to an interstitial site. No ion leaves the crystal, so mass and volume are unchanged and so is the density.