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Chemistry
Solid State
Previous Years Questions

MCQ (Single Correct Answer)

How many number of tetrahedral voids are formed in $$5 \mathrm{~mol}$$ of a compound having cubic close packed structure? (Choose the correct option) ...
How are edge length '$$a$$' of the unit cell and radius '$$r$$' of the sphere related to each other in ccp structure? (Choose correct option for your ...
A compound is formed by two elements A and B. The elements B forms cubic close packed structure and atoms of A occupy $$1 / 3$$ of tetrahedral voids. ...
What fraction of one edge centred octahedral void lies in one unit cell of fcc?
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

MCQ (More than One Correct Answer)

Which is the incorrect statement?
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