Match List-I with List-II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-fami...

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : In a particular point defec...

Choose the correct statement:

Copper crystallises in fcc unit cell with cell edge length of 3.608 $$\times$$ 10$$-$$8 cm. The density of copper is 8.92 g cm$$-$$3. Calculate the at...

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

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

An element has a body centered cubic (bcc) structure with a cell edge of 288 pm. The atomic radius is :

A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and the cations occupy 75% of octahedral voids. The...

Iron exhibits bcc structure at room temperature. Above 900°C, it transforms to fcc structure. The ratio of density of iron at room temperature to that...

In calcium fluoride, having the fluorite structure, the coordination numbers for calcium ion (Ca2+) and fluoride ion (F$$-$$) are...

The ionic radii of A+ and B$$-$$ ions are 0.98 $$ \times $$ 10$$-$$10 m and 1.81 $$ \times $$ 10$$-$$10 m. The coordination number of each ion in AB i...

Lithium has a bcc structure. Its density is 530 kg m$$-$$3 and its atomic mass is 6.94 g mol$$-$$. Calculate the edge length of a unit cell of lithium...

The vacant space in bcc lattice unit cell is

The correct statement regarding defects in crystalline solids is

A given metal crystallises out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, what is the radius...

If $$a$$ is the length of the side of a cube, the distance between the body centered atom and one corner atom in the cube will be

A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g cm$$-$$3. The molar mass of the metal is (N...

The number of carbon atoms per unit cell of diamond unit cell is

Structure of a mixed oxide is cubic close packed (ccp). The cubic unit cell of mixed oxide is composed of oxide ions. One fourth of the tetrahedral vo...

A metal crystallises with a face-centred cubic lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is

The number of octahedral void(s) per atom present in a cubic close-packed structure is

A solid compound XY has NaCl structure. If the radius of the cation is 100 pm, the radius of the anion (Y$$-$$) will be

AB crystallizes in a body centered cubic lattice with edge length '$$a$$' equal to 387 pm. The distance between two oppositely charged ions in the lat...

Lithium metal crystallises in a body-centred cubic crystal. If the length of the side of the unit cell of lithium is 351 pm, the atomic radius of lith...

Copper crystallises in a face-centred cubic lattice with a unit cell length of 361 pm. What is the radius of copper atom in pm?

With which one of the following elements silicon should be doped so as to give p-type of semiconductor?

If $$a$$ stands for the edge length of the cubic systems: simple cubic, body centred cubic and face centred cubic, then the ratio of radii of the sphe...

Percentage of free space in a body centred cubic unit cell is

Which of the following statements is not correct?

The fraction of total volume occupied by the atoms present in a simple cube is

If NaCl is doped with 10$$-$$4 mol% of SrCl2, the concentration of cation vacancies will be (NA = 6.02 $$ \times $$ 1023 mol$$-$$1)...

The appearance of colour in solid alkali metal halides is generally due to

CsBr crystallises in a body centered cubic lattice. The unit cell length is 436.6 pm. Given that the atomic mass of Cs = 133 and that of Br = 80 amu a...

In a face-centered cubic lattice, a unit cell is shared equally by how many unit cells?

A compound formed by elements X and Y crystallises in a cubic structure in which the X atoms are at the face-centres. The formula of the compound is

The pyknometric density of sodium chloride crystal is 2.165 $$ \times $$ 103 kg m$$-$$3 while its X-ray density is 2.178 $$ \times $$ 103 kg m$$-$$3. ...

When Zn converts from melted state to its solid state, it has hcp structure, then find the number of nearest atoms.

In cube of any crystal A-atom placed at every corners and B-atom placed at every centre of face. The formula of compound is

Cation and anion combines in a crystal to form following type of compound

Which is the incorrect statement?