Question

Schottky defect in crystals is observed when

Solution

Correct option is

Equal number of cations and anions are missing from the lattice

Schottky defect is due to missing of equal number of cations and anions.

SIMILAR QUESTIONS

Q1

Structure similar to zinc blende is found in

Q2

The number of equidistance oppositely charged ions in a sodium chloride crystal is

Q3

What is the coordination number of sodium in Na2O?

Q4

In zinc blende structure, the coordination number of Zn2+ ion is

Q5

In the calcium fluoride structure, the coordination number of the cation and anion are respectively

Q6

When a certain crystal was studied by the Bragg technique using X – rays of wavelength 229 pm, an X – ray reflection was observed at an angle of 230 20’. What is the corresponding interplanar spacing? [sin (23020’) = 0.396]

Q7

Potassium fluoride has NaCl type structure. What is the distance between K+ and F- ions if cell edge is a cm?

Q8

Which defect causes decreases in the density of crystal?

Q9

The correct statement regarding F – centre is

Q10

Frenkel defect is caused due to