19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The interionic distance for caesium chloride crystal will be
Which defect causes decrease in the density of crystal
The number of atoms per unit cell of bcc structure is [Kerala CEE 2009]
An element has a body-centred cubic (bcc) structures with a cell edge of 444 pm. The density of the element is 7.2 g/cm3. How many atoms are present in 404 g of the element?
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
Aluminium has fcc structure. The length of the unit cell is 404 pm. If the density of the metal is 2.7 g cm–3, the molar mass of Al atom is
Which one of the following forms a molecular solid when solidified?
In ccp arrangement the pattern of successive layers can be designated as
The intermetallic compound LiAg crystallizes in cubic lattice in which both lithium and silver have coordination number of eight. The crystal class is
The two dimensional coordination number of a molecule in square close packed layer is
In hcp arrangement, the number of nearest neighbours are
What is the coordination number of body centre cubic lattice?
Contribution of each atom per unit cell at face centre in a fcc unit cell is
The unit cell of a binary alloy composed of A and B metals, has ccp. Structure with A atoms occupying the corners and B atoms occupying centres of each face of the cube. If during the crystallisation of this alloy, in…
The unit cell of a NaCl lattice
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
The number of octahedral voids in a unit cell of a cubical closest packed structure is
If the number of atoms per unit cell in a crystal is 2, the structure of crystal is
In CsCl lattice the coordination number of Cl– ion is
Which of the following statements is not true about NaCl structure
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
In NaCl lattice the radius ratio is Na Cl r r =
A solid has a structure in which W atoms are located at the corners of a cubic lattice. O atoms at the centre of edges and Na atom at centre of the cube. The formula for the compound is (AllMS 2018) (a) NaWO (b) NaWO …
Which of the following is an example of network solid? (AIIMS 2018) (a) SO Solid (b) 2I