Embibe Experts Solutions for Chapter: Solid State, Exercise 1: KCET (UG) 2018

Which of the following is not a conductor of electricity?

A metal crystallises in face centred cubic structure with metallic radius $\sqrt{2} \mathrm{A}°$. The volume of the unit cell (in ${\mathrm{m}}^3$ ) is

Edge length of a cube is $300 \mathrm{pm}$. Its body diagonal would be

In chrysoberyl, a compound containing Beryllium, Aluminium and oxygen, oxide ions form cubic close packed structure. Aluminium ions occupy $\frac{1}{4}\mathrm{th}$ of tetrahedral voids and beryllium ions occupy$\frac{1}{4}\mathrm{th}$ of octahedral voids. The formula of the compound is

A metal crystallises in BCC lattice with unit cell edge length of $300\mathrm{pm}$ and density $6.15{\mathrm{gcm}}^{-3}.$ The molar mass of the metal is

The correct statement regarding defects in solid is

Silicon doped with gallium forms

Which of the following oxides shows electrical properties like metals?