This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 23 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. 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. 3. Molecular Solid are A) Crystalline solids. B) Metallic solids. C) Amorphous solids. D) Ionic solids. Show Answer Correct Answer: C) Amorphous solids. 4. 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) 0.5. B) 1.5. C) 2.5. D) 3.5. Show Answer Correct Answer: C) 2.5. 5. 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$_{5}$. B) A$_{5}$B$_{4}$. C) A$_{4}$B$_{3}$. D) A$_{3}$B$_{5}$. Show Answer Correct Answer: B) A$_{5}$B$_{4}$. 6. The number of particles per unit cell present at the edge of a crystal A) 2. B) 4. C) 3. D) 12. Show Answer Correct Answer: C) 3. 7. 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$_{3}$Y$_{4}$. B) X$_{4}$Y$_{3}$. C) X$_{2}$Y$_{3}$. D) X$_{2}$Y. Show Answer Correct Answer: B) X$_{4}$Y$_{3}$. 8. 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. 9. MatchColumn I. Column IIA.Non polar. p.MgB.Polar. q.AlNC.Metallic solid. r.SO2D.Network Solid. s.solid CO2 A) A-p;B-q;C-r;D-s. B) A-p;B-r;C-q;D-s. C) A-s;B-r;C-p;D-q. D) A-s;B-q;C-p;D-r. Show Answer Correct Answer: C) A-s;B-r;C-p;D-q. 10. 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. 11. This particle cannot be a basis in crystal structure: A) Ions. B) Atoms. C) Molecules. D) Electrons. Show Answer Correct Answer: D) Electrons. 12. When do ionic compounds conduct electricity? A) When dissolved in water. B) In solid state. C) In gaseous state. D) They never conduct. Show Answer Correct Answer: A) When dissolved in water. 13. 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. 14. 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. B) XYZ$_{2}$. C) XYZ$_{3}$. D) XYZ$_{4}$. Show Answer Correct Answer: C) XYZ$_{3}$. 15. Which welding process primarily relies on friction and pressure to create a bond? A) Ultrasonic Welding (USW). B) Cold Welding (CW). C) Friction Welding (FRW). D) Diffusion Bonding (DFW). Show Answer Correct Answer: C) Friction Welding (FRW). 16. 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. 17. 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). 18. 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. 19. 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) 56. B) 63. C) 108. D) 44. Show Answer Correct Answer: B) 63. 20. 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. 21. 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. 22. In resistance projection welding (RPW), high electrical resistance is developed by: A) Applying high current. B) Using specialized electrodes. C) Embossing projections on one of the surfaces. D) Heating the materials to high temperatures. Show Answer Correct Answer: C) Embossing projections on one of the surfaces. 23. Which kind of defects are introduced by doping A) Disclocation defects. B) Schotty defect. C) Frenkel defect. D) Electronic defect. Show Answer Correct Answer: D) Electronic defect. 24. In a solid atom M occupies CCP lattice and (1/3) of tetrahedral voids are occupied by atom N. Find the formula of solid formed by M and N. A) MB. B) M3N. C) MN3. D) M3N2. Show Answer Correct Answer: D) M3N2. 25. AB crystallizes in a body centred cubic lattice with edge length 'a' equal to 387 pm.The distance between two oppositely charged ions in the lattice is: A) 200 pm. B) 300 pm. C) 335 pm. D) 250 pm. Show Answer Correct Answer: C) 335 pm. ← PreviousNext →Related 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 8Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 9Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books