Embibe Experts Solutions for Chapter: Solid State, Exercise 1: Exercise 1

A solid is hard and brittle. It is an insulator in solid state but conducts electricity in molten state. The solid is a

In metallic solids, the number of atoms for the face centred and the body-centred cubic unit cells are, respectively.

In a cubic close packed structure, the fractional contributions of an atom at the corner and at the face in the unit cell are, respectively:

A two-dimensional solid pattern formed by two different atoms $\mathrm{X}$ and $\mathrm{Y}$ is shown below. The black and white squares represent atoms $\mathrm{X}$ and $\mathrm{Y}$, respectively. The simplest formula for the compound based on the unit cell from the pattern is

In the cubic structure of a compound which is made from $\mathrm{X}$ and $\mathrm{Y}$, $\mathrm{X}$ atoms are at the corners of the cube and $\mathrm{Y}$ atoms are at the face centers of the cube. The molecular formula of compound is

A metal with an atomic radius of $141.4 \mathrm{pm}$ crystallizes in the face centred cubic structure. The volume of the unit cell in ${\mathrm{pm}}^3$ is 

The packing efficiency of the face centred cubic $\left(\mathrm{fcc}\right)$, body centred cubic $\left(\mathrm{bcc}\right)$ and simple/primitive cubic $\left(\mathrm{pc}\right)$ lattices follows the order

Schottky defect in a crystal arises due to