This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 39 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 39 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following does not represent a type of crystal? A) Isomorphous. B) Triclinic. C) Hexagonal. D) Rhombohedral. Show Answer Correct Answer: A) Isomorphous. 2. 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. 3. 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. 4. The percentage of empty space in a face centre cubic arrangement is A) 74. B) 52. C) 68. D) 26. Show Answer Correct Answer: D) 26. 5. What does a point in reciprocal space correspond to in real space? A) A lattice point. B) A plane. C) A lattice vector. D) A unit cell. Show Answer Correct Answer: B) A plane. 6. Which defect is also named as dislocation defect? A) Schottky. B) Frenkel. C) Metal excess. D) Metal deficiency. Show Answer Correct Answer: B) Frenkel. 7. What type of memory is typically used in solid-state storage? A) Magnetic memory. B) Flash memory. C) Optical memory. D) Tape memory. Show Answer Correct Answer: B) Flash memory. 8. If the number of atoms per unit cell in a crystal is 4, the structure of crystal is ..... ? A) Octahedral. B) BCC. C) FCC. D) Simple cubic. Show Answer Correct Answer: C) FCC. 9. What is the typical temperature range required for diffusion bonding (DFW) to have a sufficiently high diffusion rate between parts? A) Below 100$^\circ$C (212$^\circ$F). B) 500$^\circ$C to 1000$^\circ$C (932$^\circ$F to 1832$^\circ$F). C) About 0.5 times the melting point of the metal. D) Room temperature. Show Answer Correct Answer: C) About 0.5 times the melting point of the metal. 10. Number of atoms per unit cell in face centered cubic is/are A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 11. To get a n-type semiconductor from silicon it should be dopped with a substance with valence A) 2. B) 1. C) 3. D) 5. Show Answer Correct Answer: D) 5. 12. In a compound element Y form ccp lattice and element X occupy 2/3rd of tetrahedral voids. the formula of compound is A) X$_{3}$Y$_{4}$. B) X$_{4}$Y$_{3}$. C) X$_{2}$Y$_{3}$. D) X$_{3}$Y$_{2}$. Show Answer Correct Answer: B) X$_{4}$Y$_{3}$. 13. 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) Intrinsic semiconductor, extrinsic semiconductor. B) N type semiconductor, p type semiconductor. C) P type semiconductor, n type semiconductor. D) Extrinsic semiconductor, intrinsic semiconductor. Show Answer Correct Answer: C) P type semiconductor, n type semiconductor. 14. 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. B) AB$_{3}$. C) A$_{3}$B. D) A$_{3}$B$_{2}$. Show Answer Correct Answer: B) AB$_{3}$. 15. 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(V2-V1). B) NRT ln(V2/V1). C) NRT ln(V1/V2). D) NR(V2-V1). Show Answer Correct Answer: C) NRT ln(V1/V2). 16. 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. 17. Production of electricity by application of pressure is called A) Pyroelectricity. B) Piezoelectricity. C) Ferroelectricity. D) Ferrielectricity. Show Answer Correct Answer: B) Piezoelectricity. 18. 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) An infinite array of points in space. B) A group of atoms which describe crystal structure. C) A type of crystal structure. D) A method to classify solids. Show Answer Correct Answer: A) An infinite array of points in space. 19. 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. 20. What type of solids are malleable and ductile A) Molecular. B) Ionic. C) Metallic. D) Covalent. Show Answer Correct Answer: C) Metallic. 21. 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) 160. B) 152. C) 204. D) 180. Show Answer Correct Answer: B) 152. 22. 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%. 23. Which of the following is not a property of crystalline solid? A) Isotropy. B) Anisotropy. C) Sharp melting point. D) Definite geometry. Show Answer Correct Answer: A) Isotropy. 24. The dielectric constant is also known as ..... A) Electrical resistivity. B) Electric flux. C) Relative permittivity. D) Electric field strength. Show Answer Correct Answer: C) Relative permittivity. 25. What is the coordination no. for FCC? A) 6. B) 8. C) 12. D) 16. Show Answer Correct Answer: C) 12. ← 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