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 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 18 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. At what condition, the constituent particles are free to to move in solid state A) At very low temperature. B) At sufficient low temperature. C) At high temperature. D) Both B and C. Show Answer Correct Answer: C) At high temperature. 2. Which of the following is crystalline solid A) Rock salt. B) Cane Sugar. C) Gold. D) All of them. Show Answer Correct Answer: D) All of them. 3. ..... tetrahedral and octahedral voids are there in cubic unit cell respectively A) N & 2N. B) 3N & N. C) N&N. D) 2N & N. Show Answer Correct Answer: D) 2N & N. 4. As a result of frenkal Defect A) No effect on density. B) Density decrease. C) Density increase. D) None of these. Show Answer Correct Answer: A) No effect on density. 5. Which welding process is used for welding hub-ends to axle casings and gear assemblies? A) Cold Welding (CW). B) Explosive Welding (EXW). C) Ultrasonic Welding (USW). D) Friction Welding (FRW). Show Answer Correct Answer: D) Friction Welding (FRW). 6. What is the radius ratio of octahedral void? A) 0.732. B) 0.225. C) 0.414. D) 1. Show Answer Correct Answer: C) 0.414. 7. SSR adalah ..... A) Solid state relay. B) Solid state remote. C) Solid state resistor. D) Solid stick relay. Show Answer Correct Answer: A) Solid state relay. 8. Which of the following defects is not a type of Stoichiometric defects? A) Vacancy defect. B) Schottky defect. C) Interstitial Defect. D) Metal excess defect. Show Answer Correct Answer: D) Metal excess defect. 9. The packing efficiency in simple unit cell is A) 100%. B) 52.4 %. C) 68%. D) 74%. Show Answer Correct Answer: B) 52.4 %. 10. What are the units of the scattering vector, Q? A) Inverse Degrees. B) Degrees. C) Angstroms. D) Inverse Angstroms. Show Answer Correct Answer: D) Inverse Angstroms. 11. Group drive consist of A) Single motor. B) Only one machine. C) Multi motors. D) None of the above. Show Answer Correct Answer: A) Single motor. 12. In a close pack array of 'N' spheres, the number of tetrahedral holes are ..... A) N/2. B) N. C) 4N. D) 2N. Show Answer Correct Answer: D) 2N. 13. The state of matter that has no definite size or shape is A) Solid. B) Liquid. C) Gas. D) None of the above. Show Answer Correct Answer: C) Gas. 14. Acc. to band theory Insulators have:- A) Small energy gap. B) Touching band. C) Large energy gap. D) Substituting band. Show Answer Correct Answer: C) Large energy gap. 15. Langevin's theory of paramagnetism primarily deals with ..... A) Ferromagnetic materials. B) Superconductivity. C) Diamagnetic response. D) The alignment of magnetic dipoles. Show Answer Correct Answer: D) The alignment of magnetic dipoles. 16. Some polar crystals when heated produce small electrical current. The phenomenon is called A) Ferroelectricity. B) Antiferroelectricity. C) Piezoelectricity. D) Pyroelectricity. Show Answer Correct Answer: D) Pyroelectricity. 17. Choose the correct statement that describe metallic bonding. A) Attraction which exist in ionic solid. B) Bonding-bonding electron are delocalized over the entire crystal. C) Attraction between a negative ions and the sea of delocalized electrons. D) Weakest bonding. Show Answer Correct Answer: B) Bonding-bonding electron are delocalized over the entire crystal. 18. Which compound show both Schottky and Frenkel defect? A) NaBr. B) AgCl. C) KBr. D) AgBr. Show Answer Correct Answer: D) AgBr. 19. Type of stoichiometric defect shown by ZnS is A) Interstitial. B) Frenkal. C) Schottky. D) Both frenkal and schottky. Show Answer Correct Answer: B) Frenkal. 20. Which of the following is not the characteristics of ionic solids? A) Very low value of electrical conductivity in the molten state. B) Anisotropic in nature. C) Very strong force of interactions. D) Brittle nature. Show Answer Correct Answer: A) Very low value of electrical conductivity in the molten state. 21. TYPE-V CALCULATION OF THE TYPE OF LATTICEQ.An element with molar mass 27 g mol$^{-1 }$forms a cubic unit cell with edge length 4.05 X 10$^{-8}$ cm. If in density is 2.7 g cm$^{-3}$, what is the nature of the cubic unit cell? A) FCC. B) SC. C) BCC. D) HCP. Show Answer Correct Answer: A) FCC. 22. Which of the following happens when start Delta starter is used? A) Starting voltage is reduced. B) Starting current is reduced. C) Both A and B. D) None of the above. Show Answer Correct Answer: C) Both A and B. 23. What is the primary cause of electrical resistance in metals at temperatures above absolute zero? A) Scattering of electrons by phonons. B) Scattering of electrons by impurities. C) The absence of free electrons. D) None of the above. Show Answer Correct Answer: A) Scattering of electrons by phonons. 24. Schottky defect in crystals is observed A) When unequal number of cations and anions are missing from the lattice. B) When equal number of cations and anions are missing from the lattice. C) When an ion leaves its normal site and occupies an interstitial site. D) When the density of the crystal is increased. Show Answer Correct Answer: B) When equal number of cations and anions are missing from the lattice. 25. In a close packed structure the anions (B) from the lattice and cations (A) fit into alternate tetrahedral voids . What is the formula of compound? A) A$_{2}$B. B) AB$_{2}$. C) AB$_{3}$. D) AB. Show Answer Correct Answer: D) AB. 26. Dalam Ultrasonic Welding (UsW), permukaan yang bersentuhan dari 2 komponen dikenai Gaya Normal Statis saja. A) Benar. B) Salah. C) All the above. D) None of the above. Show Answer Correct Answer: B) Salah. 27. The presence of which one of the following defects in the crystal lowers its density? A) Interstitial. B) F-Centre. C) Schottky. D) Frenkel. Show Answer Correct Answer: C) Schottky. 28. Which is an example of 13-15 compound A) AlP. B) InSb. C) GaAs. D) CdSe. Show Answer Correct Answer: A) AlP. 29. An AB2 type structure is found in: A) NaCl. B) N$_{2}$O. C) CaF$_{2}$. D) Al$_{2}$O$_{3}$. Show Answer Correct Answer: C) CaF$_{2}$. 30. The edge length of FCC unit cell is 508 pm. if the radius of the cation is 110 pm, the radius of the anion is: A) 618 pm. B) 144 pm. C) 398 pm. D) 285 pm. Show Answer Correct Answer: B) 144 pm. 31. Which of the following will cause a Solid State Protection System Actuation Train Urgent alarm? 1. Loss of AC power to the Safeguards Test Cabinet 2. Safeguards Test Cabinet in TEST 3. Loose or removed circuit card 4. Actuation Train in TEST A) 2, 3, 4. B) 1, 2, 3. C) 1, 3, 4. D) 1, 2, 4. Show Answer Correct Answer: D) 1, 2, 4. 32. What is a solid-state drive (SSD)? A) A device that uses integrated circuits to store data persistently. B) A device that uses magnetic disks to store data. C) A device that uses optical discs to store data. D) A device that uses tape to store data. Show Answer Correct Answer: A) A device that uses integrated circuits to store data persistently. 33. Doping of silicon (Si)-a 14th group element with boron (B)-13th group element leads to formation of A) Alloy. B) N type semiconductor. C) P type semiconductor. D) Insulator. Show Answer Correct Answer: C) P type semiconductor. 34. represents? A) A plane. B) A point. C) A direction. D) Family of directions. Show Answer Correct Answer: D) Family of directions. 35. In F-center 'F' denotes ..... A) Free electron. B) Interstitial site. C) Vacancy. D) Colour. Show Answer Correct Answer: D) Colour. 36. Density of a crystal is given by the formula A) $\frac{a^3M}{ZN_A}$. B) $\frac{N_AM}{Za^3}$. C) $\frac{ZM}{a^3N_A}$. D) $\frac{a^3N_A}{ZM}$. Show Answer Correct Answer: C) $\frac{ZM}{a^3N_A}$. 37. Which point defect of its crystal decrease the density of a solid A) Schottky defect. B) Frenkel defect. C) Both. D) None of the above. Show Answer Correct Answer: A) Schottky defect. 38. Prinsip Pengelasan solid-state ditunjukkan paling baik dengan contoh berikut:Jika 2 permukaan bersih didekatkan (kontak) 1 sama lain dibawah tekanan yang cukup, Mereka membentuk ikatan dan menghasilkan sambungan. A) Benar. B) Salah. C) All the above. D) None of the above. Show Answer Correct Answer: A) Benar. 39. The important characteristics of a crystal lattice are: A) Each point in a lattice is called lattice point or lattice site. B) Each point in a crystal lattice represents one constituent particle which may be an atom, a molecule(group of atoms) or an ion. C) Lattice points are joined by straight lines to bring out the geometry of the lattice. D) All of the above. Show Answer Correct Answer: D) All of the above. 40. Group 18 elements is an example of, ..... A) Molecular crystal. B) Metallic crystal. C) Atomic solid. D) Covalent crystal. Show Answer Correct Answer: C) Atomic solid. 41. How many spheres are required to form one tetrahedral void? A) 4. B) 3. C) 5. D) 6. Show Answer Correct Answer: A) 4. 42. Which of the following set of solids contains only ionic solids A) NaCl, MgO and ZnS. B) CaF2, ZnS, SiO2. C) MgO, SiO2, KCl. D) SiO2, SiC, AIN. Show Answer Correct Answer: A) NaCl, MgO and ZnS. 43. On the basis of orderly arrangement of particles, solids can be classified into A) Four. B) Two. C) Three. D) Five. Show Answer Correct Answer: B) Two. 44. The number of basic crystal systems are A) 7. B) 5. C) 3. D) None of the above. Show Answer Correct Answer: A) 7. 45. An example of a fcc lattice is ..... A) Cu. B) Zn. C) CsCl. D) Na. Show Answer Correct Answer: A) Cu. 46. The power modulator consist of A) Speed sensing. B) Current sensing. C) Control Unit. D) Inverters. Show Answer Correct Answer: D) Inverters. 47. Value of i for K4[Fe(CN)6] is A) 5. B) 11. C) 6. D) 4. Show Answer Correct Answer: A) 5. 48. The Sommerfield model improved the Drude model by incorporating ..... A) Quantum mechanics. B) Newtonian mechanics. C) Electromagnetic fields. D) Ionic lattices. Show Answer Correct Answer: A) Quantum mechanics. 49. The number of nearest particles which is in direct contact with a particle in a closed packed structure A) Unit Cell. B) Coordination number. C) Void. D) Packing efficiency. Show Answer Correct Answer: B) Coordination number. 50. What is the smallest repetitive unit of the crystal / lattice structure known as? A) Lattice Point. B) Unit Cell. C) Molecule. D) Atom. Show Answer Correct Answer: B) Unit Cell. 51. ..... principle is used in the cooling of paramagnetic salts. A) Magnetic induction. B) Adiabatic demagnetization. C) Thermal conduction. D) Ferromagnetic resonance. Show Answer Correct Answer: B) Adiabatic demagnetization. 52. What are the key factors of solid-state reactions? A) Size of the particles. B) Mechanical properties of solids. C) Thermodynamic and kinetic factors. D) Environmental factors. Show Answer Correct Answer: D) Environmental factors. 53. In a D.C. shunt motor, speed is A) Directly proportional to the armature current. B) Proportional to the square of the current. C) Independent of armature current. D) Inversely proportional to the armature current. Show Answer Correct Answer: C) Independent of armature current. 54. In the cubic close packing, the unit cell has ..... A) 4 tetrahedral voids within the unit cell. B) 8 tetrahedral voids each of the which is shared by four adjacent unit cells. C) 4 tetrahedral voids each of which is shared by four adjacent unit cells. D) *8 tetrahedral voids within the unit cells. Show Answer Correct Answer: D) *8 tetrahedral voids within the unit cells. 55. Which is an application of laser? A) Medical application. B) Communication. C) Cutting metals. D) All of the above. Show Answer Correct Answer: D) All of the above. 56. What does the Free Electron Theory explain? A) The behavior of conduction electrons in metals. B) The properties of insulators. C) The structure of atomic nuclei. D) None of the above. Show Answer Correct Answer: A) The behavior of conduction electrons in metals. 57. In Crystal of NaCl, the Coordination number of Na$^{+}$ is A) 4. B) 6. C) 2. D) 8. Show Answer Correct Answer: B) 6. 58. The crystal structure of sodium chloride is ..... A) BCC. B) Covalent. C) Amorphous. D) FCC. Show Answer Correct Answer: D) FCC. 59. Name the substance in which the gap between the valence band and conduction band is small . Therefore, some electrons may jump to conduction band and show some conductivity A) Metals. B) Insulators. C) Other. D) Semiconductor. Show Answer Correct Answer: D) Semiconductor. 60. The interparticle forces in solid hydrogen are ..... A) Hydrogen bonds. B) Van der Waal's forces. C) Coordinate bonds. D) Covalent bonds. Show Answer Correct Answer: B) Van der Waal's forces. ← 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