Chemistry questions
29404 published questions with worked solutions.
- Iron crystallises in a bcc system with a lattice parameter of 2.861 A. Calculate the density of iron in the bcc system (atomic...Not in JEE Main or NEET syllabus
- An element having an atomic radius of 0.14 nm crystallises in a fcc unit cell. What is the length of a side of the cell ?Not in JEE Main or NEET syllabus
- The metal crystallises with a face centred cubic lattice. The edge length of the unit cell is 408pm. The diameter of the metal...Not in JEE Main or NEET syllabus
- AB crystallises in a body centred cubic lattice with edge ' a ' equal to 387pm. The distance between two opposite charged ions in...Not in JEE Main or NEET syllabus
- A metal crystallises in a bcc lattice. Its unit cell edge length is about 300pm and its molar mass is about 50 g mol^ -1 . What...Not in JEE Main or NEET syllabus
- If ' a ' stands for the edge length of the cubic systems, simple cubic, body centred cubic and face centred cubic, then the ratio...Not in JEE Main or NEET syllabus
- 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...Not in JEE Main or NEET syllabus
- Copper crystallises in face centred cubic lattice with unit cell length of 361 pm. What is the radius of copper atom in pm ?Not in JEE Main or NEET syllabus
- Sodium crystallises in bcc arrangement with the interfacial separation between the atoms at the edge length of 53 pm. The density...Not in JEE Main or NEET syllabus
- Consider the following statement(s), I. InSb, AlP, GaAs are the compounds of groups 13-15. II. ZnS, CdS, HgTe are the compounds...Not in JEE Main or NEET syllabus
- If the distance between Na^+ and Cl^- ions in sodium chloride crystal is X pm, the length of the edge of the unit cell isNot in JEE Main or NEET syllabus
- Total volume of atoms present in a face centred cubic unit cell of a metal is (r = radius of atom)Not in JEE Main or NEET syllabus
- Ferrous oxide has a cubic structure and each edge of the unit is 5.0 Å. Assuming density of the oxide as 4.0 g cm^ -3 the number...Not in JEE Main or NEET syllabus
- Consider the following statements. I. bcc structure has maximum packing efficiency. II. Percentage of total space filled by the...Not in JEE Main or NEET syllabus
- X-ray diffraction studies shows that Cu crystallises in face centred cubic unit cell with cell edge of 3.6088 10^ -8 cm. An...Not in JEE Main or NEET syllabus
- If AgI crystallises in zinc blende structure with I^- ions at lattice points. What fraction of tetrahedral voids is occupied by...Not in JEE Main or NEET syllabus
- Silver (atomic weight = 108 g mol^ -1 ) has a density of 10.5 g cm^ -3 . The number of silver atoms on a surface of area 10^ -12...
- In orthorhombic, the value of a, b and c are respectively 4.2 Å, 8.6 Å and 8.3 Å. Given the molecular mass of the solute is 155 g...Not in JEE Main or NEET syllabus
- Which of the following statement(s) is/are correct? I. For a simple cubic lattice, d=a and for fcc it is d= a 2 . II. The density...Not in JEE Main or NEET syllabus
- How many Cs^+ ions occupy the second nearest neighbour locations of a Cs^+ ion in the structure CsCl (8:8 coordination)?Not in JEE Main or NEET syllabus