19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The formula for determination of density of unit cell is (a) a N g cm N M A x x (b) M g cm a N A Z x x (c) a M g cm N N A x x (d) M N g cm a N A x x
In ccp arrangement the pattern of successive layers can be designated as
The two dimensional coordination number of a molecule in square close packed layer is
If the number of atoms per unit cell in a crystal is 2, the structure of crystal is
The number of atoms contained (i) in one body centred cubic unit cell and (ii) in one face centred cubic unit cell, is
Tetragonal crystal system has the following unit cell dimensions
Crystals can be classified into basic crystal habits equal to
The property of crystalline solid is not
Given, Column A Column B A. Ionic solid I. NaCl B. Metallic solid II. Fe C. Covalent solid III. C(graphite) D. Molecular solid IV. Dry ice
NaCl is an example of
Which of the following is an example of metallic crystal solid
Solid CO₂ is an example of
Which of the following is a pseudo solid
Which of the following is non-crystalline solid
Copper crystallises in face centred cubic lattice with a edge length of 361pm. What is the radius of copper atom in pm?
In a cubic lattice of ABC, A atoms are present at all corners except one corner which is occupied by B atoms. C atoms are present at face centers. The formula of the compound is
In a face-centred cubic lattice, a unit cell is shared equally by how many unit cells
The number of atoms per unit cell in primitive (sc), body-centered (bcc), face-centered (fcc) and end- centered (ecc) unit cell decreases as
The number of atoms present in unit cell of a monoatomic substance of simple cubic lattice is
The total volume of atoms present in face-centred cubic unit cell of a metal is (r is atomic radius) (a) r (b) r (c) r (d) r
The ratio of cationic radius to anionic radius in an ionic crystal is greater than 0.732. Its coordination number is
For tetrahedral coordination the radius ratio r r should be
The ratio of cationic radius to anionic radius in an ionic crystal is greater than 0.732. Its coordination number is
For a solid with the following structure, the co- ordination number of the point B is
An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions on the centres of the faces of the cube. The empirical formula for this compounds would be