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 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 10 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In resistance projection welding (RPW), high electrical resistance is developed by: A) Applying high current. B) Heating the materials to high temperatures. C) Using specialized electrodes. D) Embossing projections on one of the surfaces. Show Answer Correct Answer: D) Embossing projections on one of the surfaces. 2. Which kind of defects are introduced by doping A) Frenkel defect. B) Schotty defect. C) Electronic defect. D) Disclocation defects. Show Answer Correct Answer: C) Electronic defect. 3. 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) MN3. C) M3N2. D) M3N. Show Answer Correct Answer: C) M3N2. 4. 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) 250 pm. B) 335 pm. C) 200 pm. D) 300 pm. Show Answer Correct Answer: B) 335 pm. 5. How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl? A) 36.56 g NaCl. B) 625 g NaCl. C) 0.625 g NaCl. D) 0.04 mol NaCl. Show Answer Correct Answer: A) 36.56 g NaCl. 6. The interstitial hole is called tetrahedral because ..... A) It is formed by six spheres. B) It is tetrahedral in shape. C) It is formed by four spheres and the centre form a regular tetrahedron. D) It is formed by three spheres. Show Answer Correct Answer: C) It is formed by four spheres and the centre form a regular tetrahedron. 7. Silicon doped with electron rich impurity forms A) Insulator. B) N type semi conductor. C) Intrinsic semiconductor. D) P type semi conductor. Show Answer Correct Answer: B) N type semi conductor. 8. The number of atoms in bcc arrangement is A) 2. B) 6. C) 4. D) 1. Show Answer Correct Answer: A) 2. 9. As temperature Increase, Conductivity of Ionic solids A) Increase. B) Decrease. C) Remains same. D) None of the above. Show Answer Correct Answer: A) Increase. 10. Example of ferromagnetic substance is A) Nacl. B) Co. C) KMno4. D) Fe3O4. Show Answer Correct Answer: D) Fe3O4. 11. What is the significance of a NOT gate in digital circuits? A) The NOT gate combines multiple signals, creating complex outputs in digital systems. B) The NOT gate inverts the input signal, providing essential functionality in digital circuits. C) The NOT gate amplifies the input signal, enhancing performance in circuits. D) The NOT gate regulates power flow, ensuring stability in electronic devices. Show Answer Correct Answer: B) The NOT gate inverts the input signal, providing essential functionality in digital circuits. 12. In 3D close packing the ABCABCABC ..... pattern gives rise to which type of close packing? A) Hexagonal Close Packing (hcp). B) Cubic Close Packing (ccp). C) Face Centred Cubic Packing (fcc). D) Both ccp and fcc. Show Answer Correct Answer: D) Both ccp and fcc. 13. A tetrahedral void in a crystal implies that A) Shape of the void is tetrahedral. B) Molecules forming the void are tetrahedral in shape. C) The void is surrounded tetrahedrally by four spheres. D) The void is surrounded by six spheres. Show Answer Correct Answer: C) The void is surrounded tetrahedrally by four spheres. 14. ABCABC type of arrangement of different layers, closest packed structure is called A) Ccp. B) Fcc. C) Hcp. D) Bcc. Show Answer Correct Answer: A) Ccp. 15. What is the primary characteristic of the interface created by friction welding? A) Smooth and even. B) Brittle and porous. C) Wavy and undulating. D) Non-existent. Show Answer Correct Answer: C) Wavy and undulating. 16. The units of ebullioscopic constant and cryoscopic constant are the same. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. Which of the following is the characteristic of a crystalline solid A) Irregular arrangement. B) Sharp melting point. C) Short-range order. D) Indefinite heat of fusion. Show Answer Correct Answer: B) Sharp melting point. 18. The ratio of close packed atoms to tetrahedral hole in cubic packing is A) 1:1. B) 1:4. C) 2:1. D) 1:2. Show Answer Correct Answer: D) 1:2. 19. Which point defect of its crystal does not alter the density of solid A) Frenkel defect. B) Schottky defect. C) Both. D) None of the above. Show Answer Correct Answer: A) Frenkel defect. 20. Intensity for allowed reflations in fcc: A) $f^2$. B) $16f^2$. C) $4f^2$. D) $2f^2$. Show Answer Correct Answer: B) $16f^2$. 21. Which defect is commonly seen in AgBr crystal? A) Schottky defect. B) Metal excess defect. C) Metal deficiency defect. D) Frenkel defect. Show Answer Correct Answer: A) Schottky defect. 22. Calculate the number of atoms in a cubic based unit cell having one atom on each corner and two atoms on each diagonal of face. A) 6. B) 4. C) 7. D) 9. Show Answer Correct Answer: C) 7. 23. How many total atoms are present per unit cell of primitive, BCC, FCC A) 1, 2, 4. B) 4, 2, 1. C) 8, 9, 12. D) 1, 4, 2. Show Answer Correct Answer: A) 1, 2, 4. 24. Which of the following are not properties of solid? A) They have definite mass, volume and shape. B) Inter molecular forces are weak. C) Inter molecular distances are short. D) They are incompresible and rigid. Show Answer Correct Answer: B) Inter molecular forces are weak. 25. The lattice constant of a unit cell of a cube is 3.28 Angstrom. The interplanar spacing of ( 2 0 1 ) plane is ..... Angstrom. A) 1.641. B) 1.467. C) 1.093. D) 0.986. Show Answer Correct Answer: B) 1.467. 26. What does the Sommerfeld model correct in the classical prediction of heat capacity? A) It accounts for only electrons near the Fermi surface contributing to heat capacity. B) It states that all electrons contribute equally. C) It eliminates the concept of heat capacity. D) None of the above. Show Answer Correct Answer: A) It accounts for only electrons near the Fermi surface contributing to heat capacity. 27. A technique to analyze crystal structure is ..... A) Calorimetry. B) Infrared spectroscopy. C) X-ray diffraction (XRD). D) Resistivity measurement. Show Answer Correct Answer: C) X-ray diffraction (XRD). 28. Which of the following solid shows electrical conduction? A) Graphite. B) Diamond. C) KCl. D) NaCl. Show Answer Correct Answer: A) Graphite. 29. Schottky defect in crystal is observed when A) The ion leaves its normal position and occupies an interstitial location. B) Unequal number of cation and anions are missing from the lattice. C) Density of the crystal increases. D) An equal number of cations and anions are missing from the lattice. Show Answer Correct Answer: D) An equal number of cations and anions are missing from the lattice. 30. Find out the correct structure of Potassium tetrafluorido Borate (III) A) K[BF2]. B) K[BF5]. C) K[BF3]. D) K[BF4]. Show Answer Correct Answer: D) K[BF4]. 31. While exploring a beautiful cave, Kabir discovered a stunning crystal formation. He learned that this formation is a crystalline solid. What is a crystalline solid? A) A solid form of a substance in which the atoms or molecules are arranged in a definite, repeating pattern in three dimensions. B) A solid that has no long-range order. C) A solid that is composed of randomly oriented atoms. D) None of the above. Show Answer Correct Answer: A) A solid form of a substance in which the atoms or molecules are arranged in a definite, repeating pattern in three dimensions. 32. Analysis shows that FeO has a non-stoichiometric composition with formula Fe$_{095}$O. Give reason. A) Schottky defect. B) Metal deficiency defect. C) Metal excess defect. D) Frenkel defect. Show Answer Correct Answer: B) Metal deficiency defect. 33. To get n-type of semiconductor, germanium should be doped with A) Gallium. B) Arsenic. C) Aluminium. D) Boron. Show Answer Correct Answer: B) Arsenic. 34. Calculate the Avogadro's number from the following data of AB when AB has NaCl type structure:Density of AB = 2.48 g cm$^{-3 }$, M=58Distance between A$^{+}$ and B$^{-}$in AB=269 pm. A) 5.0X10$^{23}$. B) 2.0X10$^{23}$. C) 4.0X10$^{23}$. D) 6.0X10$^{23}$. Show Answer Correct Answer: D) 6.0X10$^{23}$. 35. Three lines are drawn from a single corner ofan FCC unit cell to meet the other corner suchthat they are found to pass through exactly 1Octahedral void only, no voids of any typeand exactly 2 tetrahedral voids with exactly 1Octahedral void only. Identify the line in thesame order- A) Edge, Face diagonal, Body diagonal. B) Body diagonal, Face diagonal Edge. C) Face diagonal, Edge Body diagonal. D) Edge, Body diagonal, Face diagonal. Show Answer Correct Answer: A) Edge, Face diagonal, Body diagonal. 36. In the Rock-salt AB, if C is introduced in tetrahedral voids such that no distortion occurs, then formula of resultant compound is, A) ABC$_{2}$. B) ABC. C) AB$_{2}$C. D) A$_{2}$BC. Show Answer Correct Answer: A) ABC$_{2}$. 37. Which solids are also called pseudo solid? A) Amorphous. B) Crystalline. C) Regular solid. D) True solid. Show Answer Correct Answer: A) Amorphous. 38. Electric drive is becoming more and more popular because A) It is simple, cleaned, compact and reliable. B) It provides easy and smooth control, flexibility in layout, easy starting and facility for remote control. C) It is cheaper in initial as well as in maintenance cost. D) All of the above. Show Answer Correct Answer: D) All of the above. 39. The density of a metal which crystallises in bcc lattice with unit cell edge length 300 pm and molar mass 50 g mol$^{-1}$ will be A) 9.3 2 g cm$^{-3}$. B) 10 g cm$^{-3}$. C) 6.15 g cm$^{-3}$. D) 14.2 g cm$^{-3}$. Show Answer Correct Answer: C) 6.15 g cm$^{-3}$. 40. Full form of THD is ..... A) Total harmonic diverter. B) Total harmonic digital. C) Total harmonic distortion. D) Total harmonic discrete. Show Answer Correct Answer: C) Total harmonic distortion. 41. Dulong and Petit's law is used to determine ..... A) Specific heat capacity. B) Optical properties. C) Electrical conductivity. D) Thermal conductivity. Show Answer Correct Answer: A) Specific heat capacity. 42. Total number of Bravais lattices possible for Crystal system is A) 14. B) 32. C) 7. D) 230. Show Answer Correct Answer: A) 14. 43. 1 Gold has sharp Melting point it is ..... A) Crystalline solid. B) Molecular solid. C) Amorphous solid. D) Covalent solid. Show Answer Correct Answer: A) Crystalline solid. 44. Which of these is NOT secondary storage? A) RAM. B) USB. C) DVD. D) Google Drive. Show Answer Correct Answer: A) RAM. 45. ..... constraints are independent of time. A) Holonomic. B) Rheonomous. C) Non-Holonomic. D) Scleronomous. Show Answer Correct Answer: D) Scleronomous. 46. An 8-pole, 3-phase, 50 Hz induction motor is operating at a speed of 720 rpm. The frequency of the rotor current of the motor in Hz is A) 2. B) 1. C) 3. D) 4. Show Answer Correct Answer: A) 2. 47. Example for crystalline solid A) Glass. B) Plastic. C) Rubber. D) Quartz. Show Answer Correct Answer: D) Quartz. 48. The ratio of close-packed atoms to tetrahedral holes in cubic close packing is: A) 1:4. B) 1:2. C) 1:3. D) 1:1. Show Answer Correct Answer: B) 1:2. 49. Schottky defect is observed in crystals when ..... A) Some cations move from their lattice site to interstitial sites. B) Equal number of cations and anions are missing from the lattice. C) Some lattice sites are occupied by electrons. D) Some impurity is present in the lattice. Show Answer Correct Answer: B) Equal number of cations and anions are missing from the lattice. 50. ZnO turns yellow on heating. Why? A) Metal excess defect due to anion vacancy. B) Metal excess defect due to extra cation in the interstitial sites. C) Metal deficiency defect. D) Frenkel defect. Show Answer Correct Answer: B) Metal excess defect due to extra cation in the interstitial sites. 51. In solid state welding, what does the absence of melting help to avoid? A) High energy consumption. B) Heat-affected zones. C) Strong metallurgical bonds. D) Low weld strength. Show Answer Correct Answer: B) Heat-affected zones. 52. In Zinc blende structure, the coordination number of the cation is: A) 6. B) 12. C) 4. D) 8. Show Answer Correct Answer: C) 4. 53. Electrical conductivity in ionic solid is due to A) Ions. B) Electrons. C) Impurity. D) None of the above. Show Answer Correct Answer: A) Ions. 54. Cations are present in the interstitial sites in A) Vacancy defect. B) Metal deficiency defect. C) Frenkel defect. D) Schottky defect. Show Answer Correct Answer: C) Frenkel defect. 55. SSD devices are rated at only ..... A) 5GB. B) 10GB. C) 1GB. D) 20GB. Show Answer Correct Answer: D) 20GB. 56. What is the primary characteristic of solid state welding processes? A) Using high-pressure gas. B) Melting the base materials. C) Creating strong magnetic fields. D) Joining materials without melting. Show Answer Correct Answer: D) Joining materials without melting. 57. A single substance that exists in two or more forms is called A) Isomorphous. B) Polymorphous. C) Monomorphous. D) Amorphous. Show Answer Correct Answer: B) Polymorphous. 58. White crystal of zinc oxide is heated (i) Metal excess defect is created. (ii) Presence of extra cation at interstitial site.(iii) It loses oxygen and turns yellow.(iv) Free electron are created. A) All statement(s) are correct. B) (i), (ii) and (iv). C) (i), (ii) and (iii). D) (ii) and (iv). Show Answer Correct Answer: A) All statement(s) are correct. 59. Why is explosion welding considered suitable for certain applications despite its high capital investment? A) It consistently produces high-quality welds. B) It results in poor weld quality. C) It involves skilled operator intervention. D) It requires less energy. Show Answer Correct Answer: A) It consistently produces high-quality welds. 60. Quartz is a crystalline variety of: A) Sodium silicate. B) Silicon carbide. C) Silica. D) Silicon. Show Answer Correct Answer: C) Silica. ← 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