Questions

Which of the following statements are not true?

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By Expert Faculty of Sri Chaitanya

Vacancy defect results in a decrease in the density of the substance

Interstitial defects result in an increase in the density of the substance

Impurity defect has no effect on the density of the substance

Frenkel defect results in an increase in the density of the substance

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detailed solution

Correct option is C

Impurity defect changes the density of substance as impurity has different density than the ion present in perfect crystal. Frenkel defect has no effect on density of the substance.

Similar Questions

Match the defects given in Column I with the statements given in Column II.

	Column I		Column II
A.	Simple vacancy defect	1.	Shown by non-ionic solids and increases density of the solid.
B.	Simple interstitial defect	2.	Shown by ionic solids and decreases density of the solid.
C.	Frenkel defect	3.	Shown by non-ionic solids and density of the solid decreases.
D.	Schottky defect	4.	Shown by ionic solids and density of the solid remains the same.