Voids

Interstitial sites that are formed when three closed packed spheres of one layer is put on three close packed spheres of the second layer, their positions being inverted with respect to each other.

Number of moles of tetrahedral voids present in $\mathrm{FCC}$ type structure having $3$ moles of atoms is

The empty space between the shaded balls and hollow balls as shown in the diagram is called

The number of octahedral sites in a cubical close pack array of $\mathrm{N}$ spheres is

A unit cell is obtained by closed packing layers of atoms in $\mathrm{ABAB}$....... pattern. The total number of tetrahedral and octahedral voids in the unit cell are respectively

The type of void present at the centre of the ccp unit cell is:

Gold crystallises in ccp structure. The total number of voids present in $197\mathrm{g}$ of gold will be $\left[\mathrm{Au}=197\right]$

'$\mathrm{A}$' has fcc arrangement, '$\mathrm{B}$' is present in $2/3^{\mathrm{rd}}$ of tetrahedral voids. The formula of the compound will be

Total number of octahedral voids present per unit cell of $\mathrm{ccp}$ unit cell is:

Octahedral void at edge centre in $\mathrm{ccp}$ arrangement is equally distributed amongst:

The number of tetrahedral voids present on each body diagonal in ccp unit cell is

A compound is formed by two elements $\mathrm{M}$ and $\mathrm{N}$. The element $\mathrm{N}$ forms ccp and $\mathrm{M}$ atom occupies $\frac{1}{3}$ of the tetrahedral voids. The formula of the compound is

A molecule have radius ratio of $\left(\frac{{\mathrm{r}}^{-}}{{\mathrm{r}}^{+}}\right)$ is more than 0.732. Which of the following void is presented in the molecule.

A molecule have radius ratio of $\left(\frac{{\mathrm{r}}^{-}}{{\mathrm{r}}^{+}}\right)$ is 0.200 . Which of the following void is presented in the molecule.

The radius ratio of triangular planar radius is $\left(\frac{{\mathrm{r}}^{+}}{{\mathrm{r}}^{-}}=\right)$

Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are:

In a compound, atoms of element $\mathrm{Y}$ form cubic close packing lattice and those of element $\mathrm{X}$ occupy$\frac{2}{3} \mathrm{times}$  of tetrahedral voids. The formula of the compound will be

The total number of tetrahedral voids in the face centred unit cell is

In a carbon allotrope having $\mathrm{FCC}$ lattice, two atoms are at $\left(0, 0, 0\right)$ and $\left(\frac{\mathrm{a}}{8}, \frac{\mathrm{a}}{8}, \frac{\mathrm{a}}{8}\right)$ coordinates. What is the ratio of $\mathrm{C}-\mathrm{C}$ bond length distance to the edge length of the unit cell?