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IIT JEE Solid State

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1. Which of the following compounds has hexagonal structure?




2. Rate of evaporation of a liquid does not depend upon




3. Which of the following is not a property of crystalline solid?




4. In a face centred cubic lattice the number of nearest neighbours for a given lattice point is




5. NaCl is an example of




6. In rock salt structure what percentage of the octahedral voids are occupied by cations?




7. Which of the following compounds is an example of network solid?




8. The number of octahedral and tetrahedral voids per sphere in a cubic close packed arrangement is respectively.




9. A simple cubic lattice consists if eight identical spheres of Radius R in contact placed at the corners of the cube what fraction of the total volume of cube is actually occupied by the cube?




10. When a cation leaves its normal position in the crystal and moves to some interstitial space the defect in the crystal is known as




11. What type of defect creates F-centres in the crystal?




12. A crystal may have one or more planes of symmetry as well as one or more than one axis of symmetry but it has only no centre of symmetry.




13. During evaporation of liquid




14. hich of the following is an example of molecular solid?




15. Which of the following is hcp crystal structure?




16. When electrons are trapped in the crystal lattice in place of anion vacancy the defect in the crystal is known as




17. A match box exhibits




18. The percentage of the available space occupied in a hexagonal close packing of spheres in three dimensions is




19. Which type of silicates involve sharing of two oxygen atoms between silicon atoms?I. single chain silicate II. ring silicateIII. sheet silicate IV. double chain silicate.




20. A binary solid AB having radius ratio 0.52 is most likely to have




21. In antifluorite structure what percentage of the tetrahedral voids is occupied by cations?




22. Number of mirror planes in a cube is




23. Ionic solids with Schottky defects contain in their structures




24. A metal M has FCC arrangement and edge length of the unit cell is 400 pm. The atomic radius of M is




25. How many four fold axes and three fold axes are there in a cube respectively?




26. A pure crystalline substance on being heated gradually first forms a turbid liquid at constant temperature and still at a higher temperature the turbidity completely disappears. The behaviour is a characteristic of substance forming




27. Pure silicon doped with phosphorus is




28. Which of the following unit cells has the highest symmetry?




29. Which of the following pairs of species are likely to show Schottky type defects?




30. In antifluorite structure the percentage of octahedral voids occupied is




31. An atom at the edge centre of the cubic unit cell contributes??? to the particular unit cell.




32. For a cubic void the radius ratio is equal to




33. In zinc blende structure the distance of closest approach between two anions is equal to




34. Which of the following of species are likely to exhibit Frenkel type defect?




35. An element A crystallizes by adoption AB AB AB??? pattern of close packing the number of atoms in the unit cell is




36. In CsCl structure the number of anions per unit cell is




37. Which of the following is an anti-ferroelectric solid?




38. In zinc blende structure the number of formula units present in the unit cell is




39. Potassium crystallizes with




40. The ratio of close packed atoms to tetrahedral holes in cubic close packing




41. Crystals can be classified into??? basic crystal habits.




42. The number of NaCl units in a unit cell of its crystal




43. fcc arrangement of atoms contains number of atoms in each unit cell equal to




44. Clay is an example of




45. What is true about solids? I. Interparticle distance is minimumII. K.E. of particles is highIII. Interparticle attraction is largeIV. All solids have sharp mp and bp.




46. What is not true about amorphous solids? I. They undergo clean cleavage II. They do not have sharp melting pointsIII. They have high degree of rigidityIV. They exhibit isotropy. I




47. If a is edge length of a face centred cubic unit cell then the distance of closest approach of two particles is




48. The number of octahedral voids in HCP arrangement of N spheres is




49. In a metal M having BCC arrangement edge length of the unit cell is 400 pm. The atomic radius of M is




50. The tetrahedral holes occupied in diamond are




51. The Edge length of face centred cubic unit cell is 508 pm. If the radius of cation is 110 pm the radius of anion is




52. The intermetallic compound LiAg crystallizes in cubic lattice in which both lithium and silver have co-ordination number of 8. The crystal class is




53. Which of the following describes hexagonal closed packed arrangement of spheres?




54. In which of the following arrangements a metal would have least density?




55. In a body centred cubic unit cell of a metallic substance the number of atoms per unit cell is




56. The number of kinds of space lattices that are possible in a crystal is




57. Body diagonal of a cube is 866 pm. Its edge length would be




58. In rock salt structure coordination numbers of cation and anion are respectively.




59. Certain intermetallic compound of lithium and silver crystallizes in cubic structure in which both Li and Ag atoms have co-ordination number of 8. To what crystal class does the unit cell belong?




60. In a cubic crystal anions are arranged in FCC and the cations occupy half the tetrahedral voids and all the octahedral voids. The ratio of cations and anions in the crystal is




61. In hexagonal close packing of spheres in three dimensions the co-ordination number of each spheres is




62. Edge length of a cubic unit cell is 400 pm. Its face diagonal would be




63. Which of the following compound is an example of molecular solid?




64. In zinc blende structure coordination number of cation is




65. For and atomic crystal having body centred cubic unit cells the number of atoms per unit cell is




66. In a close packing the radius of the octahedral void relative to the radius of the spheres constitution it is




67. In zinc blende structure coordination number of cation is




68. The existence of a substance in more than one solid modification is known as




69. When a cation and an anion are missing leaving behind a pair of voids the defect is known as:




70. Edge length of a cube is 300 pm. Its body diagonal would be