NEET Chemistry The Solid State Online Test Set C

1. 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 of the metal is x _A Avogadro's constant=6.02 x 10²³ mol^-1)

2. 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 occupied by a monovalent metal B. The formula of the oxide is

3. The number of octahedral void(s) per atom present in a cubic close-packed structure is

4. A metal crystallizes with a face-centered cubic lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is

5. The number of carbon atoms per unit cell of diamond unit cell is

6. A given metal crystallizes 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?

7. 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

8. The correct statement regarding defects in crystalline solids is

9. The vacant space in bcc lattice unit cell is

10. Glass is a

11. In which of the following defect density increases?

12. In a calcium fluoride structure, the co-ordination number of cation and anion is respectively.

13. The ratio of number of rectangular plane and diagonal plane in a cubic unit cell

14. Second nearest neighbour in CsCl solid

15. Number of unit cells in 10 g NaCl

16. NaCl becomes paramagnetic at high temperature due to

17. Some of the molecular solids upon heating produces small amount of electricity, hence solid is

18. Number of atoms per unit cell, if atoms are present at the corner of unit cell and 2 atoms at each body diagonal

19. In a BCC unit cell, if half of the atoms per unit cell are removed, then percentage void is

20. In a ccp type structure, if half of the face-centred atoms are removed, then percentage void in unit cell is approximately

21. On rising temperature and decreasing pressure in CsCl solid

22. In a unit cell containing X²⁺, Y³⁺ and Z^2- where X²⁺ occupies 1/8th of tetrahedral voids, Y³⁺ occupies 1/2 of octahedral voids and Z^2- forms ccp structure. Then formula of compound is

23. Then ratio of densities of FCC and BCC unit cells is

24. If radius of a metal atom (A) is 5 pm and radius of an electronegative atom (B) is 20 pm, then in the unit cell

25. In a NaCl structure, if positions of Na atoms and Cl atoms are interchanged, then in the new unit cell

26. The correct statement about, CCP structure is

27. In a CsCl structure, if edge length is x, then distance between one Cs atom and one Cl atom is

28. In a unit cell, atoms A, B, C and D are present at corners, face-centres, body-centre and edge-centres respectively. If atoms touching one of the plane passing through two diagonally opposite edges are removed,then formula of compound is

29. In a unit cell, atoms A, B, C and D are present at half of total corners, all face-centres, body-centre and one third of all edge-centres respectively. Then formula of unit cell is

30. In a unit cell, atoms A, B, C and D are present at corners, face-centres, body-centre and edge-centre respectively in a cubic unit cell. The total number of atoms present per unit cell is