S C Kheterpal, S N Dhawan and, P N Kapil Solutions for Chapter: States of Matter: Solid State, Exercise 21: ADDITIONAL QUESTIONS

Explain with the help of diagrams of structural differences between three types of cubic crystals. 

Define body-centred cubic cell and face-centred cubic cell.

Name the ions which form the close-packed structure (along with the type of packing) and the ions which fill the voids (along with the types of voids) in the compounds: $\mathrm{ZnS}.$

Name the ions which form the close-packed structure (along with the type of packing) and the ions which fill the voids (along with the types of voids) in the compounds: ${\mathrm{CaF}}_2$.

$\mathrm{AgCl}$ shows Frenkel defect while $\mathrm{NaCl}$ does not. Give reason.

What type of semiconductor is formed when $\mathrm{Ge}$ is doped with $\mathrm{Al} ?$

What happens when $\mathrm{AgCl}$ is doped with ${\mathrm{CdCl}}_2$?

Why do ferrimagnetic substances show better magnetism than antiferromagnetic substances?