This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Chemistry Part I > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 14 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The dielectric constant for a material with electrical susceptibility of 4 is ..... A) 16. B) 3. C) 8. D) 5. Show Answer Correct Answer: A) 16. 2. Thyristor is also know as A) SCR. B) LASCR. C) IGBT. D) GTO. Show Answer Correct Answer: A) SCR. 3. Which type of defect will appear when CaCl$_{2}$ is added to AgCl? A) Schottky defect. B) Frenkel defect. C) Both schottky and frenkel defect. D) Non-stoichiometric defects. Show Answer Correct Answer: A) Schottky defect. 4. These are the characteristics of Trivalent impurities except A) 3 valence electrons. B) Producing a "hole". C) Produce p-type semiconductors. D) Antimony, arsenic, and phosphorus are the examples. Show Answer Correct Answer: D) Antimony, arsenic, and phosphorus are the examples. 5. If you have a sample of MgCl$_{2}$ with a mass of 15.0 g, what would need to be the final volume of the solution if you need the concentration to be 0.25 M? A) 0.63 mL. B) 630 mL. C) 39 mL. D) 0.039 mL. Show Answer Correct Answer: B) 630 mL. 6. Which of the following is an example of solid-state storage? A) Floppy Disk. B) Hard Disk Drive. C) USB Flash Drive. D) CD-ROM. Show Answer Correct Answer: C) USB Flash Drive. 7. What is the energy band gap in semiconductors? A) The energy band gap in semiconductors is less than 0.1 eV. B) The energy band gap in semiconductors ranges from 0.5 eV to 10 eV. C) The energy band gap in semiconductors is always 5 eV. D) The energy band gap in semiconductors typically ranges from 0.1 eV to 3 eV. Show Answer Correct Answer: D) The energy band gap in semiconductors typically ranges from 0.1 eV to 3 eV. 8. How do you change properties of solid state A) By altering arrangements of constituent particles. B) By adding impurities. C) By heating. D) Both A and B. Show Answer Correct Answer: D) Both A and B. 9. What is the basic principle of semiconductor physics? A) The generation of heat in materials through insulation. B) The control of charge carriers in materials through doping. C) The enhancement of electrical conductivity by cooling. D) The reduction of charge carriers through ionization. Show Answer Correct Answer: B) The control of charge carriers in materials through doping. 10. The time for half life period of a certain reaction A $\rightarrow$ products is 1 hour. When the initial concentration of the reactant 'A', is 2.0 mol L$^{-1}$, how much time does it take for its concentration to come from 0.50 to 0.25 mol L$^{-1}$ if it is a zero order reaction. A) 1hr. B) 0.5hrs. C) 4hrs. D) 0.25hrs. Show Answer Correct Answer: D) 0.25hrs. 11. A supersaturated solution is one that ..... A) Contains more solute than a saturated solution. B) Is the amount of a substance required to form a saturated solution. C) Contains less solute than a saturated solution. D) Contains the maximum amount of dissolved solute. Show Answer Correct Answer: A) Contains more solute than a saturated solution. 12. In a solid, oxide ions are arranged in ccp. Cations A occupy one-sixth of the tetrahedral voids and cations B occupy one-third of the octahedral voids. The formula of the compound is ..... A) AB$_{2}$O$_{3}$. B) ABO$_{3 }$. C) A$_{2}$B$_{2}$O$_{3}$. D) A$_{2}$BO$_{3}$. Show Answer Correct Answer: B) ABO$_{3 }$. 13. The packing efficiency of a bcc arrangement is ..... ? A) 56%. B) 74%. C) 52.4%. D) 68%. Show Answer Correct Answer: D) 68%. 14. Metallic nanotubes exhibit ..... structure A) Armchair. B) Zigzag. C) Chiral. D) All of the above. Show Answer Correct Answer: A) Armchair. 15. Which of the following is NOT an advantage of solid state welding processes? A) Low energy consumption. B) High-quality welds. C) Ability to weld metals at high temperatures. D) Speedy welding. Show Answer Correct Answer: C) Ability to weld metals at high temperatures. 16. Bravais lattices possible for orthorhombic system are ..... A) Simple. B) Simple, BC. C) Simple, FC, BC, EC. D) Simple, FC, BC. Show Answer Correct Answer: C) Simple, FC, BC, EC. 17. Example of solid state laser is A) None of these. B) He-Ne. C) GaN. D) Rhodamine. Show Answer Correct Answer: A) None of these. 18. An example of solid sol is: A) Hair Cream. B) Butter. C) Paint. D) Gem Stones. Show Answer Correct Answer: D) Gem Stones. 19. Ethyene glvcol and water mixture is used in car radiators in cold countries.why? A) It lowers the freezing point of water. B) It lowers the boiling point of water. C) It increases the boiling point of water. D) It increases the freezing point of water. Show Answer Correct Answer: A) It lowers the freezing point of water. 20. Dalam Cold Welding (CW), tekanan tidak diterapkan pada benda kerja melalui cetakan atau gulungan. A) Benar. B) Salah. C) All the above. D) None of the above. Show Answer Correct Answer: B) Salah. 21. If the atom is assumed to be a hard-sphere then the value of the highest APF in metals will be A) 0.85. B) 1.00. C) 0.99. D) O.74. Show Answer Correct Answer: D) O.74. 22. The susceptibility of diamagnetic materials are A) Positive. B) Negative. C) Highly positive. D) None of the above. Show Answer Correct Answer: B) Negative. 23. The coordination ratio of anti fluoride structure A) 4:4. B) 4:8. C) 8:8. D) 8:4. Show Answer Correct Answer: B) 4:8. 24. Pure water has density 1000kg/m$^{3}$. Choose the correct molarity for pure water. A) 10 M. B) 1000 M. C) 18 M. D) 55.5 M. Show Answer Correct Answer: D) 55.5 M. 25. The packing efficiency in simple, fcc, bcc unit cells will be respectively A) 52.4% 68% 74%. B) 68% 74% 52.4%. C) 74% 52.4% 68%. D) 52.4% 74% 68%. Show Answer Correct Answer: D) 52.4% 74% 68%. 26. Number of atoms per unit cell for scc structure is: A) 4. B) 1. C) 2. D) 3. Show Answer Correct Answer: B) 1. 27. Where the constituent particles are fixed A) Liquid. B) Gas. C) Solid. D) Both A and C. Show Answer Correct Answer: C) Solid. 28. A solid compound contains X, Y and Z atoms in a cubic lattice with X atoms occupying the corners, Y atoms in the body centred position and Z atoms at the centres of faces of the unit cell. What is the empirical formula of the compound? A) X2YZ3. B) XYZ. C) XY2Z3. D) XYZ3. Show Answer Correct Answer: D) XYZ3. 29. Which of the following statements is true for an amorphous solid? A) Short range order is present. B) Complete order is present at lower temperatures. C) There is no orderly arrangement. D) Long range order is present. Show Answer Correct Answer: A) Short range order is present. 30. Total no of tetrahedral voids in FCC unit cell A) 12. B) 6. C) 10. D) 8. Show Answer Correct Answer: D) 8. 31. The number of octahedral void(s) per atom present at a cubic close packed structure is A) 2. B) 1. C) 4. D) 3. Show Answer Correct Answer: B) 1. 32. A compound is formed by two elements, A and B. A occupies all corners of cube and center of cube. B is present on centers of faces. what is formula of unit cell? A) AB. B) AB$_{3}$. C) A$_{2}$B$_{3}$. D) AB$_{4}$. Show Answer Correct Answer: C) A$_{2}$B$_{3}$. 33. Describe the drift and diffusion of charge carriers in a semiconductor. A) Diffusion occurs only at absolute zero temperature. B) Drift is the movement of charge carriers under an electric field, while diffusion is the movement due to concentration gradients. C) Drift is the random movement of charge carriers in a vacuum. D) Drift and diffusion are the same process in semiconductors. Show Answer Correct Answer: B) Drift is the movement of charge carriers under an electric field, while diffusion is the movement due to concentration gradients. 34. Assertion:FeO is non-stoichiometric with Fe0.95O. Reason:Some Fe2+ ions are replaced by Fe3+. A) C. B) A. C) B. D) D. Show Answer Correct Answer: B) A. 35. Based on the nature of intermolecular forces, classify the following solids:Silicon carbide A) Ionic solid. B) Covalent solid. C) Molecular solid. D) Metallic solid. Show Answer Correct Answer: B) Covalent solid. 36. Edge length of a unit cell of silver lattice ( molar mass= 108 ) is 408.6 pm. The density is 10.5 g/cm$^{3}$. How many atoms are there per unit cell? A) 2. B) 1. C) 4. D) 3. Show Answer Correct Answer: C) 4. 37. Tetrahedral voids are located at ..... A) Centre. B) Diagonal. C) Edge. D) Corner. Show Answer Correct Answer: B) Diagonal. 38. On doping silicon with Al atom, we get A) Conductor. B) N-type semiconductor. C) Insulator. D) P-type semiconductor. Show Answer Correct Answer: D) P-type semiconductor. 39. Name the substances which are weakly attracted by a magnetic field & is due to presence of one or more unpaired electrons. A) Paramagnetic. B) Dimagnetic. C) Ferrimagnetic. D) Ferromagnetic. Show Answer Correct Answer: A) Paramagnetic. 40. Coordination no. in square close packed st. in 2D A) 6. B) 4. C) 3. D) 2. Show Answer Correct Answer: B) 4. 41. In Frenkel defect the effect on density will be:- A) Increase. B) Decrease. C) No change. D) Both (a) and(b). Show Answer Correct Answer: C) No change. 42. Which type of vacancy occur when CdCl$_{2}$ is added to AgCl? A) Anion vacancy. B) Cation vacancy. C) Both types of vacancies. D) None of the two vacancies. Show Answer Correct Answer: B) Cation vacancy. 43. What type of materials are suitable for Diffusion Bonding (DFW)? A) Ferrous materials only. B) Non-ferrous materials only. C) High-strength materials like titanium. D) Stainless steel, aluminum, low-alloy steels, and more. Show Answer Correct Answer: D) Stainless steel, aluminum, low-alloy steels, and more. 44. Which of the following is called super cooled liquids A) Glass. B) Quartz. C) Iron bar. D) Table salt. Show Answer Correct Answer: A) Glass. 45. Which of the following force tent to keep the constituent particles closer A) Thermal energy. B) Intermolecular force. C) Both thermal energy and intermolecular forces. D) None of these. Show Answer Correct Answer: B) Intermolecular force. 46. $\uparrow$ $\uparrow$ $\uparrow$ $\uparrow$ A) Antiferromagnetism. B) Ferrimagnetism. C) Ferromagnetism. D) Diamagnetism. Show Answer Correct Answer: C) Ferromagnetism. 47. The partial pressure of the gas in vapour phase p is ..... proportional to the mole fraction of the gas x in the solution. A) Inversely. B) Equal. C) Directly. D) None of the above. Show Answer Correct Answer: C) Directly. 48. Which of the following conditions favours the existence of a substance in the solid state? A) Weak cohesive forces. B) High temperature. C) Low temperature. D) High termal energy. Show Answer Correct Answer: C) Low temperature. 49. The point defect that always occurs in pairs is called A) Interstitial. B) F-Center. C) Frenkel. D) Schottky. Show Answer Correct Answer: D) Schottky. 50. Which symmetry operation describes a reflection plus a translation? A) Rotoinversion. B) Trans-mirror-ation. C) Glide plane. D) Screw axis. Show Answer Correct Answer: C) Glide plane. 51. Which crystal structure is characterized by a body-centered cubic arrangement? A) HCP. B) BCC. C) CsCl. D) NaCl. Show Answer Correct Answer: B) BCC. 52. How many complete atoms can we find on the BCC (body centered cubic) structure? A) 4. B) 2. C) 3. D) 1. Show Answer Correct Answer: B) 2. 53. The electricity produced on applying the stress on the crystals is called A) Piezoelectricity. B) Antiferroelectricity. C) Pyroelectricity. D) Ferroelectricity. Show Answer Correct Answer: A) Piezoelectricity. 54. The number of sodium ions and chloride ions per unit cell is A) 6:6. B) 2:2. C) 8:8. D) 4:4. Show Answer Correct Answer: D) 4:4. 55. What is the main disadvantage of solid-state storage in terms of reliability? A) Volatile nature. B) Low speed. C) Limited read and write cycles. D) High cost. Show Answer Correct Answer: C) Limited read and write cycles. 56. The coordination number of metal crystallizing in a hexagonal close packing structure are A) 10. B) 8. C) 12. D) 4. Show Answer Correct Answer: C) 12. 57. In which welding process is pressure applied by detonating an explosive layer? A) Ultrasonic Welding (USW). B) Diffusion Bonding (DFW). C) Cold Welding (CW). D) Explosive Welding (EXW). Show Answer Correct Answer: D) Explosive Welding (EXW). 58. The number of axes of symmetry in a cubic crystal A) 13. B) 4. C) 9. D) 16. Show Answer Correct Answer: A) 13. 59. The bond formation in a NaCl Crystal is A) Metallic bond. B) Ionic bond. C) Covalent bond. D) Van der Walls bond. Show Answer Correct Answer: B) Ionic bond. 60. Which of the following can be used to describe a crystalline solid? A) Heterogeneous, isotropic. B) Heterogeneous, anisotropic. C) Homogeneous, anisotropic. D) Homogeneous, isotropic. Show Answer Correct Answer: C) Homogeneous, anisotropic. ← PreviousNext →Related QuizzesScience QuizzesClass 12 QuizzesClass 12 Chemistry (Part I) Chapter 1 Solid State Quiz 1Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 2Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 3Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 4Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 5Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 6Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 7Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books