Solid State
Due to Frenkel defect, the density of ionic solids :
Which among the following solids shows Frenkel defect?
Frenkel defect is shown by the compounds in which cation is smaller than anion.
In the case of this cation move inside the lattice and form a cavity at its original place. $$AgCl,AgBr$$ Shows Frenkel defect.
Due to Frenkel defect, the density of ionic solids :
Which of the following statement(s) for crystals having Frenkel defect is/are correct?
The correct statement(s) regarding defects in solids is(are):
Which of the following is a correct statement regarding defects in crystalline solids?
Frenkel defects are not found in alkali metal halide. Why?
Give the correct order of initials T (true) or F (False) for following statements: I. In an anti-fluorite structure, anions form FCC lattice and cations occupy all tetrahedral voids. II. If the radius of cations and anions are $$0.2\ \mathring A$$ and $$0.95\ \mathring A$$, then co-ordination number of cation in the crystal is $$4$$. III. An ion is transferred from a lattice site to an interstitial position in Frenkel defect. IV. Density of crystal always increases due to substitutional impurity defect.
Density of a crystal decreases due to Schottky defect and remains constant due to Frankel defect. If true enter 1,else enter 0.
Frenkel defect does not change the density of the ionic crystal whereas, Schottky defect lowers the density of ionic crystal. Give a reason.