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 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 9 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Solutions which do not obey the Raoults law over the entire range of concentration, are called A) Ideal solutions. B) Non-ideal solutions. C) Saturated solutions. D) None of the above. Show Answer Correct Answer: B) Non-ideal solutions. 2. Which of the following statements about amorphous solids is incorrect? A) They melt over a range of temperature. B) They are anisotropic. C) There is no orderly arrangement of particles. D) They are rigid and incompressible. Show Answer Correct Answer: B) They are anisotropic. 3. The Material that softens on heating to finally flow like a liquid is A) Liquid. B) Crystalline solids. C) Amorphous solid. D) Polycrystalline solid. Show Answer Correct Answer: B) Crystalline solids. 4. Soft superconductors observe A) Meissner Effect. B) Silsbee's rule. C) Both a and b. D) None of the above. Show Answer Correct Answer: A) Meissner Effect. 5. The coordination no. in ccp and hcp unit cell is A) 4. B) 2. C) 8. D) 12. Show Answer Correct Answer: D) 12. 6. The bond that exists in a semiconductor is: A) Ionic bond. B) Covalent bond. C) Metallic bond. D) Hydrogen bond. Show Answer Correct Answer: B) Covalent bond. 7. Fe$_{3}$O$_{4 }$which is a mixed oxide of iron also comes under the category of ferrites exhibit which type of magnetism? A) Ferrimagnetism. B) Paramagnetism. C) Diamagnetism. D) Ferromagnetism. Show Answer Correct Answer: A) Ferrimagnetism. 8. An iron oxide crystallizes in a hexagonal close-packed arrangement of oxide ions with two out of every three octahedral voids occupied by iron. Give the formula of the iron oxide. A) Fe$_{3}$O$_{4}$. B) Fe$_{3}$O$_{2}$. C) FeO. D) Fe$_{2}$O$_{3}$. Show Answer Correct Answer: D) Fe$_{2}$O$_{3}$. 9. Coordination number of Tetrahedral Void A) 6. B) 12. C) 4. D) 8. Show Answer Correct Answer: C) 4. 10. Which one of the following is an example of moleculer solidCo2 or sio2 A) Co2. B) Sio2. C) All the above. D) None of the above. Show Answer Correct Answer: A) Co2. 11. The no. of atoms present per unit cell in simple, face-centred and body centred unit cells are respectively A) 2, 4, 1. B) 1, 4, 3. C) 1, 4, 2. D) 1, 2, 4. Show Answer Correct Answer: C) 1, 4, 2. 12. What is coordination number of an octahedral void A) 12. B) 4. C) 6. D) 3. Show Answer Correct Answer: C) 6. 13. An element with molar mass 64 gmol $^{-1}$ and density 6.6 g cm $^{-3}$ forms a cubic unit cell.The edge length of unit cell is 4 x 10 $^{-8}$cm.The type of cubic unit cell formed is? A) Hcp. B) Ccp. C) Bcc. D) Fcc. Show Answer Correct Answer: D) Fcc. 14. Analysis shows that a metal oxide has a empirical formula M$_{0.96}$O. Calculate the percentage of M$^{2+}$ and M$^{3+}$ ions in this crystal. A) [M$^{2+}$ = 91.7%, M$^{3+}$ = 8.3%]. B) [M$^{2+}$ = 93.7%, M$^{3+}$ = 6.3%]. C) [M$^{2+}$ = 97.7%, M$^{3+}$ = 2.3%]. D) [M$^{2+}$ = 95.7%, M$^{3+}$ = 4.3%]. Show Answer Correct Answer: A) [M$^{2+}$ = 91.7%, M$^{3+}$ = 8.3%]. 15. What is conduction band? A) Higher energy orbital. B) Lower energy orbital. C) Moderate energy orbital. D) None of the above. Show Answer Correct Answer: A) Higher energy orbital. 16. What is other name for frequency control of 3phase IM? A) Field weakening method. B) Kramer's Drive. C) V/f control. D) Rotor resistance control. Show Answer Correct Answer: A) Field weakening method. 17. If NaCl is doped with 10$^{-3}$ mol % of SrCl$_{2}$, what is the concentration of cation vacancies? A) 6.02 x 10 $^{23}$. B) 6.02 x 10 $^{19}$. C) 6.02 x 10 $^{20}$. D) 6.02 x 10 $^{18}$. Show Answer Correct Answer: D) 6.02 x 10 $^{18}$. 18. Metal deficiency defect due to:- A) Missing of anion. B) Excess of cation. C) Missing of cation. D) Both a and b. Show Answer Correct Answer: C) Missing of cation. 19. How does an AND gate function? A) An AND gate outputs true when at least one input is true. B) An AND gate functions by outputting false when all inputs are false. C) An AND gate produces true if any input is true. D) An AND gate functions by outputting true only when all inputs are true. Show Answer Correct Answer: D) An AND gate functions by outputting true only when all inputs are true. 20. What is the role of the Madelung constant in ionic crystals? A) It indicates the melting point. B) It determines the lattice structure. C) It measures the ionic radius. D) It quantifies the electrostatic energy. Show Answer Correct Answer: D) It quantifies the electrostatic energy. 21. What is the change in the length of a 15.0-m steel rail as it is cooled from 1535$^\circ$ C to 20$^\circ$ C? A) 20 cm. B) 3 cm. C) -27 cm. D) -33 cm. Show Answer Correct Answer: C) -27 cm. 22. The Clausius-Mossotti relation connects dielectric constant with ..... A) Molar mass. B) Polarizability. C) Magnetic Permeability. D) Electrical resistance. Show Answer Correct Answer: B) Polarizability. 23. Gold (atomic radius = 0.144 nm) crystallises in a face-centred unit cell. What is the length of a side of the cell? A) 0.407 nm. B) 0.607 nm. C) 4.07 nm. D) 6.07 nm. Show Answer Correct Answer: A) 0.407 nm. 24. It is the amount of matter in an object. A) Volume. B) Mass. C) Weight. D) Density. Show Answer Correct Answer: B) Mass. 25. Amorphous solids are also known as A) True solid. B) Pseudo solid. C) Poly crystalline solid. D) None of these. Show Answer Correct Answer: B) Pseudo solid. 26. Named for the father-son dynamic duo, this geometric description of the diffraction condition won the Nobel prize in 1915. A) Madelung's Constant. B) Born-Haber cycle. C) Ewald Sphere. D) Bragg's Law. Show Answer Correct Answer: D) Bragg's Law. 27. If NaCl is doped with 10$^{-4}$ mol % of SrCl$_{2}$, the concentration of cation vacancies will be A) 6.02X 10$^{16}$ mol$^{-1}$. B) 6.02X 10$^{15}$ mol$^{-1}$. C) 6.02X 10$^{17}$ mol$^{-1}$. D) 6.02X 10$^{14}$ mol$^{-1}$. Show Answer Correct Answer: C) 6.02X 10$^{17}$ mol$^{-1}$. 28. Amorphous substances showsA. Short and long range order.B. Short range orderC. Long range orderD. have no sharp M.P A) A & C are correct. B) C& D are correct. C) B & D are correct. D) B & C are correct. Show Answer Correct Answer: C) B & D are correct. 29. How do you model a diode in a circuit? A) Model as a resistor in all conditions. B) Use an ideal diode model:short circuit in forward bias, open circuit in reverse bias. C) Use a variable resistor for biasing. D) Assume it has no effect on the circuit. Show Answer Correct Answer: B) Use an ideal diode model:short circuit in forward bias, open circuit in reverse bias. 30. NaCl is the example of A) Metallic crystal. B) Molecular covalent crystal. C) Ionic crystal. D) Giant covalent solids. Show Answer Correct Answer: C) Ionic crystal. 31. Which type of crystal type is represented by a match box A) Tetragonal. B) Hexagonal. C) Cubic. D) Orthorhombic. Show Answer Correct Answer: D) Orthorhombic. 32. Describe the operation of a common emitter amplifier. A) A common emitter amplifier amplifies an input signal with inversion and increased voltage using a BJT. B) A common emitter amplifier reduces signal strength with no phase shift using a FET. C) A common emitter amplifier filters signals without amplification using a transformer. D) A common emitter amplifier provides voltage gain without inverting the input signal using a BJT. Show Answer Correct Answer: A) A common emitter amplifier amplifies an input signal with inversion and increased voltage using a BJT. 33. An example of crystalline solid is ..... A) Plastic. B) Gel. C) Rubber. D) Graphite. Show Answer Correct Answer: D) Graphite. 34. Substances / solids showing ..... behaviour make permanent magnets A) Paramagnetic. B) Ferrimagnetic. C) Ferromagnetic. D) Antiferromagnetc. Show Answer Correct Answer: C) Ferromagnetic. 35. The lattice side in a crystal cannot be occupied by ..... A) Molecule. B) Ion. C) Atom. D) Electron. Show Answer Correct Answer: D) Electron. 36. A compound is formed by two element X & Y. The element Y forms ccp and atoms of X occupy 1/3$^{rd}$ of tetrahedral voids. What is the formula of the compound? A) X$_{2}$Y$_{3}$. B) X$_{3}$Y$_{2}$. C) XY$_{3}$. D) X$_{2}$Y. Show Answer Correct Answer: A) X$_{2}$Y$_{3}$. 37. Zinc Crystallizes is hcp strucature. if 'r' is the radius of Zinc atom, the height of unit cell is: A) $r\left(\frac{3}{8}\right)^{\frac{1}{2}}$. B) $r\left(\frac{8}{3}\right)^{\frac{1}{2}}$. C) $2r\left(\frac{3}{8}\right)^{\frac{1}{2}}$. D) $2r\left(\frac{8}{3}\right)^{\frac{1}{2}}$. Show Answer Correct Answer: D) $2r\left(\frac{8}{3}\right)^{\frac{1}{2}}$. 38. Which type of defect shown by Ionic solid? A) Vacancy. B) Schottky. C) Frenkel. D) Both b and c. Show Answer Correct Answer: D) Both b and c. 39. Most crystals show good cleavage because their atoms, ions or molecules are A) Weakly bonded together. B) Strongly bonded together. C) Spherically symmetrical. D) Arranged in planes. Show Answer Correct Answer: D) Arranged in planes. 40. When quick speed reversal is a consideration, the motor preferred is A) Synchronous motor. B) Squirrel cage induction motor. C) Wound rotor induction motor. D) DC motor. Show Answer Correct Answer: D) DC motor. 41. Which properties reflected in real gases does the van der Waals equation attempt to account for by modifying the ideal gas law?I. VolumeII. PressureIII. Temperature A) II. B) I and II. C) I, II and III. D) I. Show Answer Correct Answer: B) I and II. 42. Molecular Solid are A) Crystalline solids. B) Metallic solids. C) Amorphous solids. D) Ionic solids. Show Answer Correct Answer: C) Amorphous solids. 43. In fcc packing if all atoms through one of the body diagonal plane are missing, the total number of atoms in the unit cell is, A) 3.5. B) 0.5. C) 2.5. D) 1.5. Show Answer Correct Answer: C) 2.5. 44. In a close packed structure the anions (B) from the lattice and cations (A) occupy 1/4th of the octahedral voids and half of the tetrahedral voids . What is the formula of the compound?2 points A) A$_{4}$B$_{3}$. B) A$_{4}$B$_{5}$. C) A$_{5}$B$_{4}$. D) A$_{3}$B$_{5}$. Show Answer Correct Answer: C) A$_{5}$B$_{4}$. 45. The number of particles per unit cell present at the edge of a crystal A) 4. B) 2. C) 12. D) 3. Show Answer Correct Answer: D) 3. 46. In a compound, atoms of element Y form ccp lattice and those of element X occupy 2/3 rd of tetrahedral voids. The formula of the compound will be A) X$_{4}$Y$_{3}$. B) X$_{2}$Y$_{3}$. C) X$_{3}$Y$_{4}$. D) X$_{2}$Y. Show Answer Correct Answer: A) X$_{4}$Y$_{3}$. 47. A high starting torque is offered by the Belt Conveyors. A) A. True. B) B. False. C) All the above. D) None of the above. Show Answer Correct Answer: A) A. True. 48. MatchColumn I. Column IIA.Non polar. p.MgB.Polar. q.AlNC.Metallic solid. r.SO2D.Network Solid. s.solid CO2 A) A-s;B-r;C-p;D-q. B) A-p;B-r;C-q;D-s. C) A-p;B-q;C-r;D-s. D) A-s;B-q;C-p;D-r. Show Answer Correct Answer: A) A-s;B-r;C-p;D-q. 49. Which of the following point defects are shown by AgBr crystalA. Schottky defectB. Frenkel defectC. Metal excess defectD metal deficiency defect A) A and B. B) C and D. C) A and C. D) B and D. Show Answer Correct Answer: A) A and B. 50. This particle cannot be a basis in crystal structure: A) Ions. B) Atoms. C) Molecules. D) Electrons. Show Answer Correct Answer: D) Electrons. 51. When do ionic compounds conduct electricity? A) When dissolved in water. B) In solid state. C) They never conduct. D) In gaseous state. Show Answer Correct Answer: A) When dissolved in water. 52. A simple cubic unit cell has one atom on each face A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 53. If three elements X, Y, and Z crystallize in a cubic solid with X atoms at the corners, Y atoms at the cube centers, and Z atoms at the faces of the cube, then write the formula of the compound. A) XYZ$_{2}$. B) XYZ$_{3}$. C) XYZ. D) XYZ$_{4}$. Show Answer Correct Answer: B) XYZ$_{3}$. 54. Which welding process primarily relies on friction and pressure to create a bond? A) Friction Welding (FRW). B) Cold Welding (CW). C) Diffusion Bonding (DFW). D) Ultrasonic Welding (USW). Show Answer Correct Answer: A) Friction Welding (FRW). 55. P-type and N-type extrinsic semiconductors are formed by adding impurities of valency? A) 5 and 3 respectively. B) 5 and 4respectively. C) 3 and 5 respectively. D) 3 and 4 respectively. Show Answer Correct Answer: C) 3 and 5 respectively. 56. Intercepts of a plane in crystal is given by a, b/2, 3c in a simple cubic unit cell, Miller indices are, A) (132). B) (261). C) (123). D) (361). Show Answer Correct Answer: D) (361). 57. Explain the operation of an OR gate. A) An OR gate requires all inputs to be true to output true. B) An OR gate outputs true only when both inputs are false. C) An OR gate outputs true if at least one input is true. D) An OR gate outputs false if all inputs are true. Show Answer Correct Answer: C) An OR gate outputs true if at least one input is true. 58. X-ray diffraction studies show that copper crystallises in an FCC unit cell with cell edge of 36.08 nm. In a separate experiment, copper is determined to have a density of 8.92 gcm$^{-3}$, calculate the atomic mass of copper. A) 63. B) 108. C) 56. D) 44. Show Answer Correct Answer: A) 63. 59. Drude's model is good enough to explain A) Ohm's law and Widemann Franz law. B) Ohm's law and conduction in semiconductor. C) Ohm's law and Jule's law. D) Ohm's law anFaraday's law. Show Answer Correct Answer: A) Ohm's law and Widemann Franz law. 60. Explain the energy band structure of semiconductors. A) The conduction band is always filled with electrons in semiconductors. B) The energy band structure of semiconductors includes a valence band, a conduction band, and a band gap that separates them. C) The energy band structure of semiconductors consists only of a single band. D) Semiconductors have no band gap between their energy bands. Show Answer Correct Answer: B) The energy band structure of semiconductors includes a valence band, a conduction band, and a band gap that separates them. ← 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