19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
For the structure of solid given below if the lattice points represent A+ ions & the B– ions occupy all the tetrahedral voids then coordination number of A is
A solid A+B– has the B– ions arranged as below. If the A+ ions occupy half of the octahedral sites in the structure. The formula of solid is
Which of the following statements is not true about the voids?
The number of tetrahedral voids in the unit cell of a face centred cubic lattice of similar atoms is
Glass is
Which one of the following is a molecular crystal?
The property of crystalline solid is not
The number of atoms per unit cell in primitive (sc), body-centered (bcc), face-centered (fcc) and end- centered (ecc) unit cell decreases as
In a face-centred cubic lattice, a unit cell is shared equally by how many unit cells
Number of atoms in the unit cell of Na (bcc type crystal) and Mg (fcc type crystal) are, respectively
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
The maximum proportion of available volume that can be filled by hard spheres in diamond is
An alloy of Cu, Ag and Au is found to have copper constituting the ccp lattice. If silver atoms occupy the edge centre and gold is present at body centre, the alloy has a formula
An element with atomic mass 100 has a bcc structrue and edge length 400 pm. The density of element is
A metal has bcc structure and the edge length of its unit cell is 3.04Å. The volume of the unit cell in cm will be
Assuming the metal atom to be spherical and crystallizes in fcc lattice with edge length 407 pm, its radius will be
The unit cell of aluminium is a cube with an edge length of 405 pm. The density of aluminium is 2.70 g cm –3. What is the structure of unit cell of aluminium?
The number of atoms present in unit cell of a monoatomic substance of simple cubic lattice is
For a solid with the following structure, the co- ordination number of the point B is
A compound is formed by elements A and B. This crystallizes in the cubic structure when atoms A are the corners of the cube and atoms B are at the centre of the body. The simplest formula of the compound is
In a face centred cubic arrangement of A and B atoms when A atoms are at the corner of the unit cell and B atoms of the face centres. One of the A atom is missing from one corner in unit cell. The simplest formula o…
The two dimensional coordination number of a molecule in square close packed layer is
A particular solid is very hard and has a high melting point. In solid state, it is a non-conductor and its melt is a conductor of electricity. Classify the solid.
If the number of atoms per unit cell in a crystal is 2, the structure of crystal is
The interionic distance for caesium chloride crystal will be