Chemistry - Solid State Question with Solution | TestHub

(A) False

In a Schottky defect, an equal number of cations and anions are missing, which means the density decreases, not remains unaffected.

(B) True

In a Zinc blende structure:

S²⁻ forms an FCC lattice.

Zn²⁺ occupies alternate tetrahedral voids.

(C) True

In a Cesium chloride structure:

Each Cs⁺ has 6 next-nearest Cs⁺ ions in a cubic arrangement.

(D) True

For a crystal:

A at corners → coordination number = 6

B at edge centers → coordination number = 2