Chemistry questions
29404 published questions with worked solutions.
- In a face centered cubic cell, an atom at the face contributes to the unit cell _____ [Karnataka (Engg./Med.) 2000, AFMC 2001]Not in JEE Main or NEET syllabus
- The number of unit cells in 58.5 g of NaCl is nearly _____ [MP PMT 2000, MP PMT 2001]Not in JEE Main or NEET syllabus
- The number of carbon atoms per unit cell of diamond is _____
- What is the coordination number of sodium in Na_2O?Not in JEE Main or NEET syllabus
- How many space lattices are obtainable from the different crystal systems?Not in JEE Main or NEET syllabus
- An element occurring in the bcc structure has 12.08 10^ 23 unit cells. The total number of atoms of the element in these cells...Not in JEE Main or NEET syllabus
- The number of close neighbour in a body centered cubic lattice of identical sphere is _____Not in JEE Main or NEET syllabus
- The number of octahedral sites per sphere in fcc structure is _____Not in JEE Main or NEET syllabus
- The number of atoms in 100 g of a fcc crystal with density d = 10 g/cm^3 and cell edge equal to 100 pm, is equal toNot in JEE Main or NEET syllabus
- CsBr crystal has bcc structure. It has an edge length of 4.3 Å. The shortest interionic distance between Cs^+ and Br^- ions is...Not in JEE Main or NEET syllabus
- A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g cm^ -3 . The molar mass...Not in JEE Main or NEET syllabus
- AB crystallizes in a body centered cubic lattice with edge length 'a' equal to 387 pm. The distance between two oppositely...Not in JEE Main or NEET syllabus
- If 'a' stands for the edge length of the cubic systems: simple cubic, body centered cubic and face centered cubic, then the ratio...Not in JEE Main or NEET syllabus
- A given metal crystallizes out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit...Not in JEE Main or NEET syllabus
- Ferrous oxide has a cubic structure and each edge of the unit cell is 5.0 Å. Assuming density of the oxide as 4.09 g cm^ -3 ,...Not in JEE Main or NEET syllabus
- In face centred cubic unit cell, the edge length is _____Not in JEE Main or NEET syllabus
- The edge length of fcc Xe crystal is 620 pm. The radius of Xe atom is _____ [MP PET 2004]Not in JEE Main or NEET syllabus
- In orthorhombic, the value of a, b and c are respectively 4.2 Å, 8.6 Å and 8.3 Å. The molecular mass of the solute is 155 g mol^...Not in JEE Main or NEET syllabus
- The unit cell of Al (molar mass 27 g mol^ -1 ) has an edge length of 405 pm. Its density is 2.7 g/cm^3. The cubic unit cell is...Not in JEE Main or NEET syllabus
- Sodium metal crystallizes in body centred cubic lattice with a unit cell edge of 4.29 Å. The radius of sodium atom is...Not in JEE Main or NEET syllabus