EASY
JEE Main
IMPORTANT
Earn 100

The parameters of the unit cell of a substance are a=2.5, b=3.0, c=4.0, α=90°, β=120°γ=90°. The crystal system of the substance is :

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Important Questions on Solid State

MEDIUM
JEE Main
IMPORTANT

Match List - I with List - II:

List-I (Property) List-II (Example)
(a) Diamagnetism (i) MnO
(b) Ferrimagnetism (ii) O2
(c) Paramagnetism (iii) NaCl
(d) Antiferromagnetism (iv) Fe3O4

Choose the most appropriate answer from the options given below:

EASY
JEE Main
IMPORTANT
The number of octahedral voids per lattice site in a lattice is_. (Rounded off to the nearest integer)
MEDIUM
JEE Main
IMPORTANT

Given below are two statements:
Statement I : Frenkel defects are vacancy as well as interstitial defects.
Statement II : Frenkel defect leads to colour in ionic solids due to presence of F-centres.

Choose the most appropriate answer for the statements from the options given below:

MEDIUM
JEE Main
IMPORTANT
Which one of the following species responds to an external magnetic field?
MEDIUM
JEE Main
IMPORTANT
The unit cell of copper corresponds to a face centered cube of edge length 3.596 Å with one copper atom at each lattice point. The calculated density of copper in kg/m3 is ___ . [Molar mass of Cu:63.54 g; Avogadro Number =6.022×1023 J]
EASY
JEE Main
IMPORTANT

The coordination number of an atom in a body-centered cubic structure is______

[Assume that the lattice is made up of atoms.]

HARD
JEE Main
IMPORTANT
A copper complex crystallising in a CCP lattice with a cell edge of 0.4518 nm has been revealed by employing X-ray diffraction studies. The density of a copper complex is found to be 7.62 g cm-3. The molar mass of copper complex is       gmol-1
(Nearest integer): [ Given :NA=6.022×1023 mol-1]
EASY
JEE Main
IMPORTANT
Diamond has a three dimensional structure of C atoms formed by covalent bonds. The structure of diamond has face centred cubic lattice where 50% of the tetrahedral voids are also occupied by carbon atoms. The number of carbon atoms present per unit cell of diamond is ________.