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Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 13 (60 MCQs)

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1. In a solid lattice, the cation left lattice site and occupy interstitial site. The defect is
2. An element with which silicon can be doped to give a p-type semiconductor
3. Assertion:The total number of atoms present in a simple cubic unit cell is one. Reason:Simple cubic unit cell has atoms at its corners, each of which is shared between eight adjacent unit cells.
4. What is the maximum capacity available for solid-state storage?
5. Water is most dense ar 0$^\circ$ C.
6. The sharp melting point of crystalline solids is due to
7. If there are points /atoms at the corners as well as at the face centres, the lattice is termed as
8. In the terms of number of particles per unit cell, which of the following is said to be more efficient?
9. ..... is formed by two parallel reflecting mirrors, which is used to amplify the laser.
10. Unit 1 is about to synchronize and close the MGB with Reactor Power at 16%.Which of the following Reactor Trip signal is BLOCKED based on the above plant condition?
11. The ionic solid which shows both frenkel as well as Schottky defect is
12. A space lattice is also called .....
13. Which of the following ionic compounds is expected to show both Schottky and Frenkel defects?
14. CsBr has b.c.c. structure with edge length 4.3 A. The shortest inter ionic distance in between Cs$^{+}$ and Br$^{-}$ is:
15. KF has NaCl structure. If the distance between K$^{+}$and F$^{-}$ is 269 pm, find the density of KF (N$_{A= }$6.02X10$^{23 }$mol$^{-1 }$, atomic masses K=39, F=19 amu )
16. Which type of solid structure melts at a definite, sharp melting point?
17. Fe, Co, Ni which are used to make permanent magnets exhibit
18. The type of crystalline solid that is a good conductor in solid as well as molten state?
19. What types of void is formed at the body centre of a FCC unit cell
20. Choose the correct optionassertion-due to frenkel defect there is no effect on density of crystalreason-in frenkel defect no ion leaves the crystal
21. Smallest repeating unit of crystal lattice
22. Arrangement of sulphide ions in zinc blende is
23. A compound contains two types of atoms X and Y. It crystallizes in a cubic lattice with atoms X at the corners of the unit cell and atoms Y at the body centre. The simplest possible formula of this compound is:
24. Solid State Relay adalah jenis pengalih elektronik (sakelar elektronik) yang menggunakan komponen elektronika aktif untuk mengendalikan pengalihan arus dan tegangan listrik. Berbeda dengan Relay Elektromagnetik, Solid State Relay tidak menggunakan komponen mekanis atau kontaktor mekanis tetapi menggunakan komponen elektronika aktif seperti Thyristor adalah
25. What happens when Fe$_{3}$O$_{4}$ is heated at 850 K?
26. Which of the following machines has heavy fluctuating of load?
27. When the deviations from ideal arrangement are around a point or an atom the defect is
28. Copper crystalline in FCC with a unit cell length of 361pm. What is the radius of a copper atom?
29. A semiconductor material
30. At sufficient low temperature, solid has
31. In an ionic compound AX, the radii of A+ and X-ions are 1 p.m. and 2 p.m. respectively the volume of the unit cell of the crystal AX will be
32. Graphite cannot be classified as
33. What is the coordination number in a square close packing structure in two dimensions
34. What is the primary role of the rotating tool in friction stir welding?
35. What is the coordination number of a sphere in the face centred cubic close packed structure of identical spheres?
36. When mercuric iodide is added to the aqueous solution of KI, then the:
37. The functions of the power modulator if
38. The white ZnO turns yellow on heating because of
39. Rohan is studying different types of materials in his chemistry class. He learns about solids and comes across a unique type of solid that does not have a regular structure. What defines this amorphous solid?
40. The maximum percentage of volume left unoccupied in a fcc system is ..... ?
41. The number of octahedral sites and tetrahedra sites per sphere in FCC structure
42. In Ruby Laser the active energy levels are provided by
43. What is the change in length of a 2.00-m copper pipe if its temperature is raised from 23$^\circ$C to 978$^\circ$C?
44. Which among the following is not true for crystalline solid?
45. If x atoms undergo CCP, what is the number of octahedral voids
46. What is the Fermi energy?
47. Most unsymmetrical Crystal is
48. The difference in the electrical conductivity of metals, insulators, and semiconductors can be understood in terms of
49. Smallest portion of a crystal lattice which when repeated in different directions generates entire lattice is
50. ..... show permanent magnetism even when the magnetic field is removed
51. In octahedral void and tetrahedral void, radius ratio (in closest packing)
52. An electron trapped in an anion cavity in a crystal is called
53. A primitive cell has:
54. An solid AB having the NaCl structure, A atoms occupy the Corners of the cubic unit cell If all the face-centered atoms along one of the axes are removed then the resultant stoichiometry of the solid is
55. The phenomenon of magnetic levitation in superconductors is due to .....
56. Which of the following describes the hexagonal close packed arrangement of sphere
57. This synthesis method relies on strongly exothermic reactions to drive solid-state reactivity.
58. If the distance between Na$^{+}$ and Cl$^{-}$? ions in sodium chloride crystal is X pm, the length of the edge of the unit cell is
59. The number of constituent particles in BCC = .....
60. If the chemical potential $\mu$ of a component in solution is lower than in the pure state, the mixing process is:
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