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 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The process of adding an impurity to an intrinsic semiconductor is called A) Doping. B) Recombination. C) Ionization. D) Atomic modification. Show Answer Correct Answer: A) Doping. 2. The prefix "nano" comes from a A) Spanish word meaning particle. B) Greek word meaning dwarf. C) Latin word meaning invisible. D) French word meaning billion. Show Answer Correct Answer: B) Greek word meaning dwarf. 3. Imagine you're choosing a storage device for your laptop that you often carry in your backpack. Which solid-state characteristic means it's less likely to get damaged from being jostled around, as it has no moving parts? A) Speed. B) Durability. C) Cost. D) Portability. Show Answer Correct Answer: B) Durability. 4. Which among the following is the equation for Avogadro's law A) T=k*V. B) P$_{1}$V$_{1}$=P$_{2}$V$_{2}$. C) V$_{1}$/n$_{1}$=V$_{2}$/n$_{2}$. D) V$_{1}$N$_{1}$=V$_{2}$N$_{2}$. Show Answer Correct Answer: C) V$_{1}$/n$_{1}$=V$_{2}$/n$_{2}$. 5. What is the primary bonding type in ionic crystals? A) Ionic bonding. B) Metallic bonding. C) Van der Waals forces. D) Covalent bonding. Show Answer Correct Answer: A) Ionic bonding. 6. For what substances is the solid state less dense than the liquid state? A) No liquids. B) Most liquids other than water. C) Water. D) All liquids. Show Answer Correct Answer: C) Water. 7. If a crystal lattice of a compound, each corner of a cube is enjoyed by sodium, each edge centre of a cube has oxygen and centre of a cube is enjoyed b tungsten (W), then give its formula A) Na$_{2}$WO$_{3}$. B) Na$_{3}$WO$_{3}$. C) Na$_{2}$WO$_{4}$. D) NaWO$_{3}$. Show Answer Correct Answer: D) NaWO$_{3}$. 8. An alloy of copper, silver and gold is found to have copper constituting the ccp lattice.If silver atoms occupy the edge centres and gold present at body centre, the alloy has formula A) CuAgAu. B) Cu$_{4}$Ag$_{2}$Au. C) Cu$_{4}$Ag$_{4}$Au. D) Cu$_{4}$Ag$_{3}$Au. Show Answer Correct Answer: D) Cu$_{4}$Ag$_{3}$Au. 9. Assertion:In crystalline solids, the value of resistance is diffierent in different directions. Reason:Crystalline solids are isotropic in nature. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true, but reason is not the correct explanation of assertion. (c) If assertion is true, but reason is false. (d) If both assertion and reason are false. A) D. B) C. C) B. D) A. Show Answer Correct Answer: B) C. 10. For a van der Waals gas, the correction to pressure accounts for: A) Molecular size. B) Intermolecular attractions. C) Both (a) and (b). D) Only temperature. Show Answer Correct Answer: B) Intermolecular attractions. 11. Which type of defect has the presence of cations in the interstitial site? A) Frenkel defect. B) Schottky defect. C) Metal deficiency defect. D) Vacancy defect. Show Answer Correct Answer: A) Frenkel defect. 12. Assertion (A)-The packing efficiency is maximum of the fcc Reason (R)-The coordination number is 12 in fcc structures structure A) Both (A) and (R) are correct and (R) is the correct explanation of (A). B) Both (A) and (R) are correct but (R) is not the correct explanation of (A). C) A) is correct but (R) is incorrect. D) (A) is incorrect but (R) is correct. Show Answer Correct Answer: B) Both (A) and (R) are correct but (R) is not the correct explanation of (A). 13. Due to frenkel defect the density of ionic solids ..... A) Increases. B) Decreases. C) Does not change. D) Initially increase then decreases. Show Answer Correct Answer: C) Does not change. 14. You can measure ..... with grams. A) Volume. B) Mass. C) Conductivity. D) Melting point. Show Answer Correct Answer: B) Mass. 15. A concrete sidewalk section 8.000 m by 1.000 m by 0.100 m at exactly 0$^\circ$ C will expand to waht volume at 35$^\circ$ C? A) 1.203 m$^{3}$. B) 1.000 m$^{3}$. C) 0.801 m$^{3}$. D) 0.780 m$^{3}$. Show Answer Correct Answer: C) 0.801 m$^{3}$. 16. In ..... method of starting three phase induction motors the starting voltage is not reduced A) Auto transformer. B) Star Delta. C) Slip ring. D) Any of the above. Show Answer Correct Answer: C) Slip ring. 17. Following a Manual Reactor Trip:-Reactor Trip Breaker R failed to OPEN-Tavg is 572$^\circ$F and loweringBased on the above conditions, the MFW Pumps are ..... (1) ..... , and the MF Regulating Valves are ..... (2) ..... A) TRIPPED(2) OPEN. B) RUNNING(2) OPEN. C) TRIPPED(2) CLOSED. D) RUNNING(2) CLOSED. Show Answer Correct Answer: D) RUNNING(2) CLOSED. 18. Copper has the face centered cubic structure. The coordination number of each ion is A) 4. B) 8. C) 12. D) 14. Show Answer Correct Answer: C) 12. 19. The temperature above which a ferromagnetic substance looses its ferromagnetism is known as A) Magnetic Temperature. B) Curie Temperature. C) Critical Temperature. D) Krafts Temperature. Show Answer Correct Answer: B) Curie Temperature. 20. The crystal with metal deficiency defect is A) KCl. B) ZnO. C) Nacl. D) FeO. Show Answer Correct Answer: D) FeO. 21. In wurtzite sulphide ions have ..... arrangement A) Primitive. B) HCP. C) BCC. D) CCP. Show Answer Correct Answer: B) HCP. 22. The wrong statement about Para magnetism A) It is due to the presence of one or more unpaired electrons. B) They keep their magnetism in the absence of magnetic field. C) They are weakly attracted by a magnetic field. D) They are magnetized in a magnetic field in the same direction. Show Answer Correct Answer: B) They keep their magnetism in the absence of magnetic field. 23. Which substance will conduct the current in the solid state? A) Graphite. B) Sodium chloride. C) Iodine. D) Diamond. Show Answer Correct Answer: A) Graphite. 24. What characteristic of the welding interface makes friction welding unique? A) Smooth and even surface. B) Wavy and undulating shape. C) Porous structure. D) Brittle fractures. Show Answer Correct Answer: B) Wavy and undulating shape. 25. Transfer atom melintasi antar muka; dengan demikian, menerapkan eksternal panas meningkatkan kekuatan ikatan antara 2 permukaan yang disambung, seperti yang terjadi pada Ikatan Difusi. A) Benar. B) Salah. C) All the above. D) None of the above. Show Answer Correct Answer: A) Benar. 26. Which of the following is a network solid? A) H2O(ice). B) SO2(solid). C) Diamond. D) I2. Show Answer Correct Answer: C) Diamond. 27. The wavelength of x-rays is measured in ..... A) Cm. B) Nanometer. C) Angstrom. D) Micron. Show Answer Correct Answer: C) Angstrom. 28. Which of the following point defects are shown by AgBr(s) crystals?(A) Schottky defect (B) Frenkel defect(C) Metal excess defect (D) Metal deficiency defect A) And (B). B) And (D). C) And (C). D) And (D). Show Answer Correct Answer: A) And (B). 29. Hexagonal closed packing is found in the crystal lattice of ..... A) Na. B) Po. C) Al. D) Mg. Show Answer Correct Answer: D) Mg. 30. Which of the following is a four-level laser? A) He-Ne. B) ND:YAG. C) Ruby. D) Semiconductor laser. Show Answer Correct Answer: B) ND:YAG. 31. Which of the following is the limitation of valence bondtheory? A) It does not distinguish between weak and strongligands. B) It does not give quantitative interpretation of magneticdata. C) It does not explain the colour exhibited bycoordination compounds. D) All of these. Show Answer Correct Answer: D) All of these. 32. If the radius of the octahedral void is 'r' and radius of the atoms in close packing is 'R'. What is the relation between 'r' and 'R'? A) R = 0.3010 R. B) R = 41.4 R. C) R = 0.4 R. D) R = 0.414 R. Show Answer Correct Answer: D) R = 0.414 R. 33. The coordination number of each Atom in bcc is A) 4. B) 12. C) 6. D) 8. Show Answer Correct Answer: D) 8. 34. Such a unit cell contains one constituent particle (atom, molecule or ion) at its body-centre besides the ones that are at its corners. A) BCC. B) FCC. C) ECC. D) None of the above. Show Answer Correct Answer: A) BCC. 35. A metallic crystal crystallizes into a lattice containing a sequence of layers ABABAB A packing of spheres leaves out voids in the lattice . What is the percentage of volume of this lattice in empty space? A) 74%. B) 26%. C) 50%. D) None. Show Answer Correct Answer: B) 26%. 36. Nuclear Magnetic Resonance (NMR) is primarily used to study the ..... A) Vibrational modes of crystals. B) Thermal properties of materials. C) Optical properties of semiconductors. D) Structural characteristics of compounds. Show Answer Correct Answer: D) Structural characteristics of compounds. 37. If in NaCl, the positions of Na$^{+}$ and CI$^{ ..... }$ are interchanged, having fcc arrangement of CI-ions then in the unit cell of NaCI A) Na ions will decrease by 1 while CI ions will increase by 1. B) Na ions will increase by 1 while CI ions will decrease by 1. C) Number of Na and CI will remain the same. D) The crystal structure of NaCl will change. Show Answer Correct Answer: B) Na ions will increase by 1 while CI ions will decrease by 1. 38. The Unit Supervisor has directed the Reactor Operator to perform a MANUAL Reactor Trip. When the Manual Reactor Trip Switch is manipulated, they operate the ..... in the reactor trip circuitry. A) UV coils AND Shunt trip. B) UV coils ONLY. C) Shunt trip ONLY. D) Rod Drive MG Set Supply Breakers. Show Answer Correct Answer: A) UV coils AND Shunt trip. 39. An element with which silicon can be doped to give a n-type semiconductor A) Aluminum. B) Germanium. C) Gallium. D) Arsenic. Show Answer Correct Answer: D) Arsenic. 40. Percentage of empty space in a BCC arrangement is A) 32%. B) 26%. C) 74%. D) 68%. Show Answer Correct Answer: A) 32%. 41. Coordination number of 1 D close packed structures is A) 3. B) 4. C) 1. D) 2. Show Answer Correct Answer: D) 2. 42. The space occupied in bcc arrangement is A) 68%. B) 70%. C) 74 %. D) 60.4%. Show Answer Correct Answer: A) 68%. 43. Among the ligands NH$_{3}$, en, CN$^{-}$ and CO, the correct order of field strength is A) CN$^{-}$ < NH$_{3}$ < CO < en. B) CO < NH$_{3}$ < en < CN$^{-}$. C) En < CN$^{-}$< NH$_{3}$ < CO. D) NH$_{3}$ < en < CN$^{-}$ < CO. Show Answer Correct Answer: D) NH$_{3}$ < en < CN$^{-}$ < CO. 44. Which in the following is not a simple molecular lattice? A) Iodine. B) Water. C) NaCl. D) None of the above. Show Answer Correct Answer: C) NaCl. 45. When electrons are trapped into the crystal in anion vacancy, the defect is known as: A) F-centre. B) Frenkel defect. C) Stoichiometric defect. D) Schottky defect. Show Answer Correct Answer: A) F-centre. 46. Number of atoms in simple cubic cell A) 2. B) 0. C) 4. D) 1. Show Answer Correct Answer: D) 1. 47. Molecular Solids can be classified into A) Five. B) Four. C) Two. D) Three. Show Answer Correct Answer: D) Three. 48. Copper crystallises in fcc lattice with a unit cell edge of 361 pm. The radius of copper atom is:- A) 120. B) 115. C) 138. D) 128. Show Answer Correct Answer: D) 128. 49. A metal mixture is called A) Allotropes. B) Alloy. C) Lattice. D) None of the above. Show Answer Correct Answer: B) Alloy. 50. What type of materials can be joined using Ultrasonic Seam Welding (USEW)? A) Dissimilar materials. B) Non-ferrous materials only. C) Metals only. D) Plastics only. Show Answer Correct Answer: A) Dissimilar materials. 51. What is a crystal lattice? A) A crystal lattice is a type of liquid structure. B) A crystal lattice is a random arrangement of gas particles. C) A crystal lattice is a solid that does not have any structure. D) A crystal lattice is a regular, repeating arrangement of particles in a crystalline solid. Show Answer Correct Answer: D) A crystal lattice is a regular, repeating arrangement of particles in a crystalline solid. 52. Which of the following is not polar molecular solids A) HCl. B) HBr. C) H2O. D) SO2. Show Answer Correct Answer: C) H2O. 53. Fe3O4 (magnetite) is an example of A) Anti fluorite structure. B) Inverse spinel structure. C) Normal spinel structure. D) Fluoride structure. Show Answer Correct Answer: B) Inverse spinel structure. 54. It is anything that has both mass and volume. A) Energy. B) Matter. C) Density. D) Weight. Show Answer Correct Answer: B) Matter. 55. The number of atoms per unit cell in simple cubic, face centered cubic and body centered cubic are A) 4, 1, 2. B) 2, 4, 1. C) 1, 4, 2. D) 1, 2, 4. Show Answer Correct Answer: C) 1, 4, 2. 56. Identify the antiferromagnetic substance A) Fe3O4. B) NaCl. C) CrO2. D) MnO. Show Answer Correct Answer: D) MnO. 57. Which one of the following causes C-8? A) Turbine inlet pressure Low (1/1) OR Governor Valves Closed (2/4). B) EHC pressure < 1245.8 psig (2/3) OR Governor Valves Closed (2/4). C) Turbine inlet pressure Low (1/1) OR Throttle Valves Closed (2/4). D) EHC pressure < 1245.8 psig (2/3) OR Throttle Valves Closed (2/4). Show Answer Correct Answer: D) EHC pressure < 1245.8 psig (2/3) OR Throttle Valves Closed (2/4). 58. Coated steel sheets may pose welding challenges primarily due to: A) The type and thickness of the coating. B) High carbon content. C) Low alloy content. D) Lack of impurities. Show Answer Correct Answer: A) The type and thickness of the coating. 59. The percentage of empty space in a body centred cubic arrangement is ..... A) 32. B) 68. C) 52. D) 74. Show Answer Correct Answer: A) 32. 60. For which types of D.C. motor, dynamic braking is generally used? A) Shunt motors. B) Series motors. C) Compound motors. D) All of the above. Show Answer Correct Answer: D) All of the above. ← 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 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 8Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books