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Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 22 (60 MCQs)

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1. What is the main advantage of solid state welding over fusion welding?
2. Natural diamond is classify as?
3. Diamond has the same arrangement as that of .....
4. Which one of the following compound exhibit both schottky and frenkel defects?
5. What is the main advantage of ultrasonic welding in solid state welding processes?
6. A cubic solid is made up of two elements A and B. Atoms of the elements B are present at the corners of the cube and atoms A at the body centre. Predict the formula of the compound
7. What is the mechanism called when an axial force is applied during flash welding?
8. Stoichiometric defect is also known as
9. Isotropy is the character of
10. Packing efficiency of primitive unit cell
11. Which of the following is a disadvantage of solid-state storage?
12. Which motor should not be started on no-load?
13. Which of the following is NOT an advantage of solid-state storage?
14. Copper crystallizes in fcc with a unit cell length of 361 pm. What is the radius of copperatom?
15. Peaks of scattered intensity is observed when the path difference would be equal to .....
16. The GROND Observatory is known to measure the afterglow of GRBs in ..... colours simultaneously.
17. X-rays posses a wavelength ..... to atomic lattices. a) b) c) d)
18. Coordination no of CaF$_{2}$ and Na$_{2}$O respectively.
19. Assertion:In any ionic solid (MX) with Schottky defects, the number of positive and negative ions are same. Reason:Equal number of cation and anion vacancies are present.
20. A fully controlled converter uses
21. Calculate the density of silver which crystallizes in a face-centred cubic structure. Two distance between the nearest silver atom in this structure is 287 pm.(molar mass of Ag=107.87 g mol$^{-1}$, N$_{A}$=6.02X10$^{23 }$mol$^{-1}$).
22. An ionic compound crystallises in FCC type structure with 'A' ions at the centre of each face and 'B' ions occupying corners of the cube. The formula of the compound is
23. The Crystal lattice of NaCl is
24. Scanning electron is a technique that uses ..... for the scanning
25. When the deviations from ideal arrangement are in the entire row then the defect is
26. Find whether the bonds are ionic or covalent-O-C-O
27. A unit cell is characterized by how many parameters?
28. What type of welding process involves introducing oscillating vibrations through a hardened probe?
29. What is a benefit of solid-state storage in terms of speed?
30. In face centred cubic lattice, A occupies corners and B occupies face centres. If one atoms ofB is missing from one of the face centre, formula of the compound is.
31. Use MP3 to store .....
32. Speed and design rating are limited in
33. Number of atoms in one unit cell
34. Which welding process is used for joining high-strength materials in the aerospace and nuclear industries?
35. The percentage of empty space in a body-centered cubic arrangement is
36. Which type of solid has sharp melting point
37. The vacant space in body centred cubic lattice unit cell is:
38. Application of the Electrical drives in
39. CO2 is a ..... solid
40. The one that is extensively used as a piezoelectric material is
41. Which type of defect is observed in ionic crystals with large difference in the size of ions is .....
42. A real gas does not exhibit ideal gas behaviour because
43. In graphite, carbon atoms are joined together due to:
44. SiO$_{2}$ is an example of
45. For each pair, indicate which bond will be stronger.*Li-F, Na-Cl
46. A collection of geometrical points in 3-d space arranged in a regular periodic manner is called .....
47. On doping Ge metal with a little of In(Indium) we get
48. An element with molar mass 0.027 kg mol$^{-1}$ forms a cubic unit cell with edge length 405 pm. If its density is 2700 kg m$^{-3}$, what is the nature of the cubic unit cell?
49. What is the coordination number of atom in CCP structure
50. ..... is defined as the no. Of nearest atoms which are directly surrounding given atom
51. Lasers are different with respect to the ordinary light in terms of it
52. What is the best choice of drive type for lathe machine?
53. The numbers of tetrahedral and octahedral holes in a ccp array of 100 atoms are respectively
54. . What is the effect of increasing temperature on the electrical conductivity of semiconductors?
55. Which of these is the cheapest type of secondary storage?
56. ..... are orderly collection of positive ions surrounded by and held together by a sea of free electrons
57. A solid has a structure in which W atoms arelocated at the corners of a cubic lattice. O atomat the centre of the edges and Na atom at centreof the cubic. The formula for the compound is-
58. Solid State Relay (SSR) mampu melakukan banyak tugas yang sama sebagai relay elektromekanis (EMR). Perbedaan utama adalah bahwa SSR tidak memiliki bagian .....
59. What is the standard reduction potential (E$^{O}$) for Cu$^{+}$/Cu?Given that:Cu$^{2+}$+2e$^{-}$$\rightarrow$ Cu; E$^{O}$$_{Cu}$$^{ 2+}$$_{/Cu}$=0.337VCu$^{2+}$+e$^{-}$ $\rightarrow$ Cu$^{+}$; E$^{O}$$_{Cu}$$^{2+}$$_{/Cu}$$^{+}$=+0.153 V
60. Molarity is defined as ..... divided by .....
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