19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
AB crystallises in a body-centred cubic lattice with edge 'a' equal to 387 pm. The distance between two oppositely charged ions in the lattice is (CBSE AIPMT 2010)
Number of unit cells in 4 g of X (atomic mass = 40) which crystallises in bcc pattern is (NA = Avogadro's number) (OJEE 2010) (a) A 0.1N (c) A 2 0.1N x (b) A 0.1N (d) A N x
If in a crystal lattice of a compound, each corner of a cube is enjoyed by sodium, each edge of a cube has oxygen and centre of cube is enjoyed by tungsten (W), then give its formula [Guj. CET 2011]
Which one of the following is a covalent crystal? [KCET 2011]
The metal crystallises with a face-centred cubic lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is (CBSE AIPMT 2012)
Structure of a mixed oxide is cubic close packed (ccp). The cubic unit cell of mixed oxide is composed of oxide ions. One fourth of the tetrahedral voids are occupied by divalent metal A and the octahedral voids are o…
The number of carbon atoms per unit cell of diamond unit cell is (NEET 2013)
A solid AB has NaCl structure. If the radius of cation A+ is 170 pm. Calculate the maximum possible radius of the anion B (WB JEE 2013)
The metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g/cm3. The molar mass of the metal is (NA =Avogadro's constant 6.02 10 mol ) x (NEET 2013)
If a is the length of the side of a cube, the distance between the body centered atom and one corner atom in the cube will be (AIPMT 2014)
Which of the following can be regarded as molecular solid? (EAMCET 2014)
Copper crystallises in face centred cubic lattice with a unit cell length of 361 pm. What is the radius of copper atom in pm? (Manipal 2014)
The vacant space in bcc lattice unit cell is (AIPMT 2015)
A given metal crystallises out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, What is the radius of one atom? (AIPMT 2015)
Lithium has a bcc structure. Its density is 520 kg m–3 and its atomic mass is 6.94 g mol–1. Calculate the edge length of a unit cell of Lithium metal. (NA = 6.02 × 1023 mol–1) (NEET 2016)
Which of the following is an example of network solid? (AIIMS 2018) (a) SO Solid (b) 2I
Solid SO₂ and NH₃ are the examples of which of the following types of solids? (CBSE 2018)
Niobium crystallises in body centred cubic structure. If density is 8.55 g cm-3, then the atomic radius of niobium is (atomic mass of niobium = 93u) (AllMS 2018)
An atom forms face centred cubic crystal with density d = 8.92g/mL and edge length a 3.6 10 cm x . The molecular mass of atom in amu is (JIPMER 2018)
In a crystalline solid, having formula XY₂O₄, oxide ions are arranged in cubic close packed lattice while, cations X are present in tetrahedral voids and cations Y are present in octahedral voids. The percentage of te…
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 …
Formula of nickel oxide with metal deficiency defect in its crystal is Ni₀.98O. The crystal contains Ni²⁺ and Ni³⁺. ions. The fraction of nickel existing as Ni²⁺ ions in the crystal is (NEET (Odisha) 2019)
The tetrahedral voids present in 0.5 mole of hcp crystal structure are (AIIMS 2019) (a) 3.6 10 x (b) 9 10 x (c) 3.6 10 x (d) 6.02 10 x
The correct option for the number of body centred cubic unit cells in all 14 types of Bravais lattice unit cells is: [NEET 2021]
Amorphous substances show (1) Short and long range order (2) Short range order (3) Long range order (4) Have no sharp M.P.