19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The ratio of cationic radius to anionic radius in an ionic crystal is greater than 0.732. Its coordination number is
The number of atoms present in unit cell of a monoatomic substance of simple cubic lattice 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
Number of atoms in the unit cell of Na (bcc type crystal) and Mg (fcc type crystal) are, respectively
A metal crystallises into a lattice containing a sequence of layer as AB ABAB....... . What percentage of voids are left in the lattice?
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
Copper crystallises in face centred cubic lattice with a edge length of 361pm. What is the radius of copper atom in pm?
A metal crystallizes in a face-centered unit cell. Its edge length is 0.410 nm. The radius of the metal 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
The ratio of close-packed atoms to tetrahedral holes in cubic close packing is
The number of tetrahedral voids in the unit cell of a face centred cubic lattice of similar atoms is
Which of the following statements is not true about the voids?
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
For the structure given below the site marked as S is a
The number of octahedral voids in a unit cell of a cubical closest packed structure is
In CsCl lattice the coordination number of Cl– ion is
If the coordination number of Ca2+ in CaF2 is 8, then the coordination number of F– ion would be
What is the coordination number of sodium in Na2O
The unit cell of a NaCl lattice
Which of the following statements is not true about NaCl structure
In NaCl lattice the radius ratio is Na Cl r r =
How many chloride ions are there around sodium ion in sodium chloride crystal.
The structure of MgO is similar to NaCl. What would be the coordination number of magnesium.