Bravais Lattice

How many types of centred unit cells are there?

The correct option for the number of body centred unit cells in all $14$ types of Bravais lattice unit cells is:

The number of lattice points in an end-centred unit cell are:

A solid has a structure in which $\mathrm{W}$ atoms are located at the corners of a cubic lattice, $\mathrm{O}$ atom at the center of the edges and $\mathrm{Na}$ atom at centre of the cube. The formula for the compound is

In a $\mathrm{CCP}$ lattice of $\mathrm{X}$ and $\mathrm{Y}$, the $\mathrm{X}$ atoms are present at the corners, while the $\mathrm{Y}$ atoms are at the face centres. Then the formula of the compound if one of the $\mathrm{X}$ atoms from a corner is replaced by $\mathrm{Z}$atoms is (also mono-valent)?

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 centres of the cube. The molecular formula of compound is

${\mathrm{MgAl}}_2{\mathrm{O}}_4$ is found in the spinal structure, in which ${\mathrm{O}}^{2-}$ ions constitute the $\mathrm{CCP}$ lattice, ${\mathrm{Mg}}^{2+}$ ions occupy $1/8$th of the tetrahedral voids and ${\mathrm{Al}}^{3+}$ ions occupy $1/2$ of the octahedral voids. Find the total positive charge contained in one unit cell.

Which of the following are the correct axial distance and axial angles for rhombohedral system?

Choose the correct statements:

Correct relation between radius of atom and edge length in body centred cubic crystal is:

The percentage of an edge in a bcc unit-cell which is not covered by atoms is nearly :

Which type of crystal systems (of the following) have all their interfacial angles right angle?

The number of tetrahedral and octahedral voids in hexagonal primitive unit cell are:

Incorrect about $\mathrm{SCC}$ is:-

A solid is made up of two elements, $\mathrm{X}$ and $\mathrm{Y}$. Atoms $\mathrm{X}$ are in $\mathrm{FCC}$ arrangement and $\mathrm{Y}$ atoms occupy all the octahedral sites and alternate tetrahedral sites. What is the possible formula of the compound-

An element $\mathrm{A}$ crystallises in $\mathrm{FCC}$ structure. $200 \mathrm{g}$ of this element has $4.12\times {10}^{24}$ atoms. The density of $\mathrm{A}$ is $7.2\mathrm{g} {\mathrm{cm}}^{-3}$ Calculate the edge length of the unit cell:

What is the difference between the number of atoms per unit cell in face centred cube and the number of atoms per unit cell in body centred cube:-

Which of the following is incorrect match for Bravais lattices of given crystal system -

Distance between nearest cation and anion in an ionic solid is $\frac{\sqrt{3}\mathrm{a}}{4}$ then ionic solid may be:

Which of the following is not a correct combination: