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 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 16 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Below are true about assumptions of the Kinetic Molecular Theory, EXCEPT A) The volume occupied by gas molecule is not negligible when compared to volume of gas. B) Gas particles are in constant, random, straight-line motion. C) Gas particles do not exert attractive or repulsive forces on each other except during collisions. D) Collisions are elastic. Show Answer Correct Answer: A) The volume occupied by gas molecule is not negligible when compared to volume of gas. 2. Close packing is Maximum in the crystal lattice of A) End Centred. B) Simple cubic. C) Bcc. D) Fcc. Show Answer Correct Answer: D) Fcc. 3. An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions on the centres of the faces of the cube. The empirical formula for this compound would be: A) AB$_{3}$. B) A. AB. C) A$_{2}$B. D) A$_{3}$B. Show Answer Correct Answer: A) AB$_{3}$. 4. P-type semiconductors are formed when Silicon or Germanium is doped with Group A) 15. B) 14. C) 12. D) 13. Show Answer Correct Answer: D) 13. 5. Which of the following does not represent a type of crystal? A) Hexagonal. B) Triclinic. C) Rhombohedral. D) Isomorphous. Show Answer Correct Answer: D) Isomorphous. 6. How does temperature affect the band structure of a solid? A) Temperature affects the band structure by altering atomic vibrations, potentially narrowing the bandgap and enabling electron transitions. B) Temperature only affects the electrical conductivity, not the band structure. C) Higher temperatures always increase the bandgap. D) Temperature has no effect on the band structure. Show Answer Correct Answer: A) Temperature affects the band structure by altering atomic vibrations, potentially narrowing the bandgap and enabling electron transitions. 7. How does crystal structure affect the properties of a material? A) Crystal structure influences the weight of a material. B) Crystal structure has no impact on material properties. C) Crystal structure affects the properties of a material by influencing its atomic arrangement and bonding characteristics. D) Crystal structure only affects the color of a material. Show Answer Correct Answer: C) Crystal structure affects the properties of a material by influencing its atomic arrangement and bonding characteristics. 8. The percentage of empty space in a face centre cubic arrangement is A) 74. B) 26. C) 52. D) 68. Show Answer Correct Answer: B) 26. 9. What does a point in reciprocal space correspond to in real space? A) A lattice vector. B) A unit cell. C) A lattice point. D) A plane. Show Answer Correct Answer: D) A plane. 10. Which defect is also named as dislocation defect? A) Frenkel. B) Metal excess. C) Schottky. D) Metal deficiency. Show Answer Correct Answer: A) Frenkel. 11. What type of memory is typically used in solid-state storage? A) Magnetic memory. B) Optical memory. C) Tape memory. D) Flash memory. Show Answer Correct Answer: D) Flash memory. 12. If the number of atoms per unit cell in a crystal is 4, the structure of crystal is ..... ? A) Simple cubic. B) Octahedral. C) FCC. D) BCC. Show Answer Correct Answer: C) FCC. 13. What is the typical temperature range required for diffusion bonding (DFW) to have a sufficiently high diffusion rate between parts? A) About 0.5 times the melting point of the metal. B) 500$^\circ$C to 1000$^\circ$C (932$^\circ$F to 1832$^\circ$F). C) Below 100$^\circ$C (212$^\circ$F). D) Room temperature. Show Answer Correct Answer: A) About 0.5 times the melting point of the metal. 14. Number of atoms per unit cell in face centered cubic is/are A) 4. B) 2. C) 3. D) 1. Show Answer Correct Answer: A) 4. 15. To get a n-type semiconductor from silicon it should be dopped with a substance with valence A) 2. B) 5. C) 3. D) 1. Show Answer Correct Answer: B) 5. 16. In a compound element Y form ccp lattice and element X occupy 2/3rd of tetrahedral voids. the formula of compound is A) X$_{2}$Y$_{3}$. B) X$_{3}$Y$_{4}$. C) X$_{3}$Y$_{2}$. D) X$_{4}$Y$_{3}$. Show Answer Correct Answer: D) X$_{4}$Y$_{3}$. 17. Doping of Silicon (Si)-a 14th group element with Gallium (Ga)-13th group element leads to formation of ..... and Doping of Silicon (Si)-a 14th group element with Arsenic (As)-15th group element leads to formation of ..... A) P type semiconductor, n type semiconductor. B) N type semiconductor, p type semiconductor. C) Intrinsic semiconductor, extrinsic semiconductor. D) Extrinsic semiconductor, intrinsic semiconductor. Show Answer Correct Answer: A) P type semiconductor, n type semiconductor. 18. A compound is formed by A and B in which A occupies all corners and B occupies all face centres. What is the formula of the compound? A) AB$_{3}$. B) A$_{3}$B. C) AB. D) A$_{3}$B$_{2}$. Show Answer Correct Answer: A) AB$_{3}$. 19. The work done during the reversible isothermal compression of one mole of an ideal gas from volume V1 to V2 at temperature T is: A) NRT ln(V1/V2). B) NRT(V2-V1). C) NRT ln(V2/V1). D) NR(V2-V1). Show Answer Correct Answer: A) NRT ln(V1/V2). 20. Which of the following sentence is correct A) Constituent particles are arranged regularly in crystalline solid. B) Thermal energy of solid is higher at low temperature. C) Rigidity of solid due to arrangements of constituent particles in regularly. D) Properties of solid only can be changed by adding impurities. Show Answer Correct Answer: A) Constituent particles are arranged regularly in crystalline solid. 21. Production of electricity by application of pressure is called A) Pyroelectricity. B) Ferrielectricity. C) Piezoelectricity. D) Ferroelectricity. Show Answer Correct Answer: C) Piezoelectricity. 22. In a science class, Saisha is explaining the concept of crystal (space) lattice to her classmates. She describes it as an infinite array of points in space that helps in understanding the arrangement of atoms in a crystal. What is crystal (space) lattice? A) A method to classify solids. B) A group of atoms which describe crystal structure. C) A type of crystal structure. D) An infinite array of points in space. Show Answer Correct Answer: D) An infinite array of points in space. 23. What type of materials can be bonded using Ultrasonic Welding (USW)? A) Metals only. B) Plastics only. C) Ductile metals, plastics, and some thermoplastics. D) Ceramics. Show Answer Correct Answer: C) Ductile metals, plastics, and some thermoplastics. 24. What type of solids are malleable and ductile A) Molecular. B) Ionic. C) Metallic. D) Covalent. Show Answer Correct Answer: C) Metallic. 25. Lithium forms body centred cubic structure. The length of the side of its unit cell is 351 pm. Atomic radius of the lithium will be:- A) 180. B) 160. C) 204. D) 152. Show Answer Correct Answer: D) 152. 26. What is the packing efficiency of FCC unit cell? A) 52.4%. B) 74%. C) 68%. D) None of these. Show Answer Correct Answer: B) 74%. 27. The dielectric constant is also known as ..... A) Electrical resistivity. B) Electric field strength. C) Relative permittivity. D) Electric flux. Show Answer Correct Answer: C) Relative permittivity. 28. Which of the following is not a characteristic of crystalline solid A) Definite and characteristic heat of fusion. B) Long range order. C) Isotropic in nature. D) Clean cleavage or smooth edges on cutting with a knife. Show Answer Correct Answer: C) Isotropic in nature. 29. What is the coordination no. for FCC? A) 16. B) 6. C) 8. D) 12. Show Answer Correct Answer: D) 12. 30. Sulfur exists in two polymorphic forms ..... and ..... A) Rhombic and monoclinic. B) Rhombic and triclinic. C) Hexagonal and triclinic. D) Hexagonal and monoclinic. Show Answer Correct Answer: A) Rhombic and monoclinic. 31. The relationship between the atomic radius (r) and edge length (a) of a simple, fcc, bcc cubic unit cell will be respectively A) $\frac{a}{2}$ $\frac{\sqrt{3}a}{4}$ $\frac{\sqrt{2}a}{4}$. B) $\frac{\sqrt{2}a}{4}$ $\frac{\sqrt{3}a}{4}$ $\frac{a}{2}$. C) $\frac{\sqrt{3}a}{4}$ $\frac{a}{2}$ $\frac{\sqrt{3}a}{4}$. D) $\frac{a}{2}$ $\frac{\sqrt{2}a}{4}$ $\frac{\sqrt{3}a}{4}$. Show Answer Correct Answer: D) $\frac{a}{2}$ $\frac{\sqrt{2}a}{4}$ $\frac{\sqrt{3}a}{4}$. 32. What type of defect can arise when a solid is heated? A) Impurity defect. B) Interstitial defect. C) Metal excess defect. D) Vacancy defect. Show Answer Correct Answer: D) Vacancy defect. 33. The coordination number of two dimensional SCP= ..... A) 12. B) 6. C) 4. D) 8. Show Answer Correct Answer: C) 4. 34. Some of the very old glass objects appear slightly milky instead of being transparent. Why? A) Because glass is an amorphous solid. B) Due to ageing of glass. C) Due to some crystallization in that region. D) Due to collection of some dirt inside the glass. Show Answer Correct Answer: C) Due to some crystallization in that region. 35. What is the attractive force present in ice? A) Coordinate bond. B) Hydrogen bond. C) Ionic bond. D) Covalent bond. Show Answer Correct Answer: B) Hydrogen bond. 36. For which off the following applications DC motors are still preferred? A) Reversibility. B) Variable speed drive. C) High starting torque. D) High operation. Show Answer Correct Answer: B) Variable speed drive. 37. Which of the following statements about crystals is incorrect? A) The atomic structure of a crystal defines it's geometric shape. B) There are seven large groups of crystal geometries or crystal systems. C) The shape of a crystal is dependent on the chemical conditions under which it formed. D) There are many geometric planes in a single crystal. E) The shape of a crystal is independent of the physical conditions under which it formed. Show Answer Correct Answer: E) The shape of a crystal is independent of the physical conditions under which it formed. 38. The wavelength of X-rays is given by A) $\lambda$ = C/V. B) V = $\lambda$ C. C) C = $\lambda$ V. D) None of the above. Show Answer Correct Answer: A) $\lambda$ = C/V. 39. The radius ratio for tetrahedral sites is closest to: A) 0.414. B) 0.732. C) 0.225. D) 0.155. Show Answer Correct Answer: C) 0.225. 40. Number of atoms per unit cell in a Face Centered Cubic lattice A) 4. B) 2. C) 6. D) 1. Show Answer Correct Answer: A) 4. 41. The selection of an electric motor for any application depends on which of the following factors? A) Electrical characteristics. B) Mechanical characteristics. C) Size and rating of motors. D) All of the above. Show Answer Correct Answer: D) All of the above. 42. Amorphous solids have ..... structure. A) Irregular. B) Dendritic. C) Linear. D) Regular. Show Answer Correct Answer: A) Irregular. 43. What is the significance of Van der waal's constant 'a' A) Measure of deviation from ideal behavior. B) Measure of the magnitude of the attractive forces among the molecules of the gas. C) Continuity of state. D) Measure of effective size of the gas molecules. Show Answer Correct Answer: B) Measure of the magnitude of the attractive forces among the molecules of the gas. 44. Ward-Leonard controlled dc drives are generally used for A) Light duty excavators. B) Medium duty excavators. C) Heavy duty excavators. D) All of the above. Show Answer Correct Answer: C) Heavy duty excavators. 45. What is the DC load line and how is it analyzed? A) The DC load line represents the voltage across a capacitor in a circuit. B) The DC load line is used to measure AC circuit performance. C) The DC load line is a graphical tool used to analyze the operating point of nonlinear devices in DC circuits. D) The DC load line is a method for calculating power loss in resistors. Show Answer Correct Answer: C) The DC load line is a graphical tool used to analyze the operating point of nonlinear devices in DC circuits. 46. Which of the following describes a crystal? A) A homogeneous solid. B) Has a geometrically regular form. C) Has a highly ordered microscopic structure. D) All of the options describe crystals. Show Answer Correct Answer: D) All of the options describe crystals. 47. What impact does Solid-State Storage have on computing? A) Increased noise during operation. B) More heat generation. C) Slower system boot times. D) Improved battery life. Show Answer Correct Answer: D) Improved battery life. 48. What will happen, with the increase in speed of a DC motor? A) Back emf increase but line current falls. B) Back emf falls and line current increase. C) Both back emf as well as line current increase. D) Both back emf as well as line current fall. Show Answer Correct Answer: A) Back emf increase but line current falls. 49. The colours of some otherwise colourless compounds are due to. A) Metal excess defect (F-Centres). B) Metal deficiency defect. C) Frenkel defect. D) Schottky defect. Show Answer Correct Answer: A) Metal excess defect (F-Centres). 50. Column I. Column II1.ice. A.Mol ..... crystal2.solid CO2. B.H2 bonded str ..... 3.Graphite. C.Covalent solid4.Silica. D.Insulator A) 1-B;2-C;3-A;4-D. B) 1-B;2-A;3-C;4-D. C) 1-D;2-C;3-A;4-B. D) 1-D;2-A;3-C;4-B. Show Answer Correct Answer: B) 1-B;2-A;3-C;4-D. 51. Glucose, urea is an example of ..... A) Covalent solid. B) Hydrogen bonded molecular solids. C) Polar molecular solids. D) Non polar molecular solids. Show Answer Correct Answer: B) Hydrogen bonded molecular solids. 52. Whenever a current carrying conductor is placed in a magnetic field, the conductor experiences a A) Energy. B) Attraction. C) Torque. D) Force. Show Answer Correct Answer: D) Force. 53. The materials which show permanent magnetism even in the absence of magnetic field are called ..... material. A) Paramagnetic. B) Ferrimagnetic. C) Dimagnetic. D) Ferromagnetic. Show Answer Correct Answer: D) Ferromagnetic. 54. Which substance acts as superconductor at 4 K? A) Cu. B) Mg. C) Na. D) Hg. Show Answer Correct Answer: D) Hg. 55. In CaF2 cations are placed in ..... A) All the Oh holes. B) Half of the Oh holes. C) All the Td holes. D) Half of the Td holes. Show Answer Correct Answer: C) All the Td holes. 56. In the CaF2 structure, the Coordination number of cations and anions are respectively A) 6 and 6. B) 8 and 4. C) 4 and 4. D) 4 and 8. Show Answer Correct Answer: B) 8 and 4. 57. Coordination number of Octahedral structure A) 6. B) 4. C) 12. D) 8. Show Answer Correct Answer: A) 6. 58. The coordination number of atoms in a body-centred cubic structure is ..... A) 4. B) 12. C) 8. D) 6. Show Answer Correct Answer: C) 8. 59. Which of the following is not a crystal line solid? A) KCl. B) Rhombic S. C) Glass. D) CsCl. Show Answer Correct Answer: C) Glass. 60. What volume of water must be added to 25 mL of a 4.0 mol/L solution of potassium carbonate solution to dilute it to a concentration of 1.6 mol/L? A) 27.2 mL. B) 38.0 mL. C) 29.4 mL. D) 31.5 mL. Show Answer Correct Answer: B) 38.0 mL. ← 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