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Which of the following statements are not true ?A. Vacany defect results in a decrease in the density of the substanceB. Interstitial defects results in a n increase in the density of the substaceC. Impurity defect has no effect on the density of the substanceD. Frenkel defect results in an increase in the density of the substance |
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Answer» Correct Answer - C,D Statements(C) and (D) can be correctly written as (C) Impurity defect cahgnes the density of substance as impurity has different than the ion present on prefect crystal e.g., when `SrCl_(2)` is added to the NaCl crystal, it causes impurity defect, (d) Frenkel defect results neither decrease nor increase in density of substance. |
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