19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following statements is not true about NaCl structure
In CsCl structure, the coordination number of Cs⁺ is
What is the coordination number of sodium in Na₂O
The unit cell of a NaCl lattice
The number of formula unit in unit cell of CsCl, type is
Ferrous oxide has a cubic structure and each edge of the unit cell is 5.0 Å. Assuming density of the oxide as 4.0 g cm–3, then the number of Fe²⁺ and O₂– ions present in each unit cell will be
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
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
In NaCl lattice the radius ratio is Na Cl r r =
The number of tetrahedral voids in the unit cell of a face centred cubic lattice of similar atoms is
The number of octahedral voids in a unit cell of a cubical closest packed structure is
Copper crystallises in face centred cubic lattice with a edge length of 361pm. What is the radius of copper atom in pm?
The interionic distance for caesium chloride crystal will be
A metal crystallizes in a face-centered unit cell. Its edge length is 0.410 nm. The radius of the metal is
The ratio of close-packed atoms to tetrahedral holes in cubic close packing is
In CsCl lattice the coordination number of Cl– ion is
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
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
If the coordination number of Ca²⁺ in CaF₂ is 8, then the coordination number of F– ion would be
Which of the following fcc structure contains cations in alternate tetrahedral voids ?
Which defect causes decrease in the density of crystal
In a solid lattice the cation has left a lattice site and is located at an interstitial position, the lattice defect is
The correct statement regarding F-centre is
In ABC packing if the number of atoms in the unit cell is n then the number of tetrahedral voids in the unit cell is equal to