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

1. 6

2. 8

3. 10

4. 12

Same coordination number for cations and anions is present in:

Which of the following is not true about the ionic solids?

In the cubic close packing, the unit cell has ......... .

The edge lengths of the unit cells in terms of the radius of spheres constituting fcc, bcc, and simple cubic unit cells are respectively -

1. $2\sqrt{2\mathrm{r}}, \frac{4\mathrm{r}}{\sqrt{3}}, 2\mathrm{r}$

2. $\frac{4\mathrm{r}}{\sqrt{3}}, 2\sqrt{2\mathrm{r}}, 2\mathrm{r}$

3. $2\mathrm{r}, 2\sqrt{2\mathrm{r}}, \frac{4\mathrm{r}}{\sqrt{3}}$

4. $2\mathrm{r}, \frac{4\mathrm{r}}{\sqrt{3}}, 2\sqrt{2\mathrm{r}}$

Which of the following is not true about the voids formed in a 3-dimensional hexagonal close-packed structure?

The correct choice among the given is - 

1. (I, II)

2. (II, III)

3. (III, IV)

4. (I, III)

The number of tetrahedral voids per unit cell in NaCl crystal is -

I. 4

II. 8

III. Twice the number of octahedral voids

IV. Four times the number of octahedral voids.

The correct choice among the given is-

1. (I, II)

2. (II, III)

3. (III, IV)

4. (I, IV)

Match the type of packing given in Column I with the items given in Column II.

Codes

Select the correct option based on statements below: