This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 37 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the significance of the unit cell in crystal structures? A) The unit cell only affects the color of the crystal. B) The unit cell is significant as it defines the basic structure and properties of a crystal. C) The unit cell is a random arrangement of atoms in a crystal. D) The unit cell is irrelevant to the properties of a crystal. Show Answer Correct Answer: B) The unit cell is significant as it defines the basic structure and properties of a crystal. 2. What is a key feature of Solid-State Storage compared to traditional hard drives? A) Larger physical size. B) Faster read and write speeds. C) Has moving parts. D) Uses magnetic disks. Show Answer Correct Answer: B) Faster read and write speeds. 3. Co-ordination no. in 1-D packing A) 2. B) 4. C) 5. D) 3. Show Answer Correct Answer: A) 2. 4. The percentage occupied by voids in BCC type of unit cell will be ..... A) 32%. B) 68%. C) 74%. D) 42%. Show Answer Correct Answer: A) 32%. 5. The function of a freewheeling diode is A) Load current continuous. B) Firing angle increase. C) Reduce load current. D) Increase load inductance. Show Answer Correct Answer: A) Load current continuous. 6. KCl when heated in an atmosphere of Potassium vapours exhibit purple colour. This arises due to which type of defect? A) Metal excess defect due to anionic vacancies. B) Metal excess defect due to presence of extra cation. C) Metal deficient defect due to variable oxidation state of metal. D) Impurity defect when a foreign ion is present in the crystal lattice. Show Answer Correct Answer: A) Metal excess defect due to anionic vacancies. 7. The most unsymmetrical and symmetrical system are respectively: A) Tetragonal, cubic. B) Triclinic, cubic. C) Rhombohedral, hexagonal. D) Orthorombic, cubic. Show Answer Correct Answer: B) Triclinic, cubic. 8. Brass is an example of A) Colvent crystal. B) Molecular crystal. C) Ionic crystal. D) Metallic crystal. Show Answer Correct Answer: D) Metallic crystal. 9. What is the function of a capacitor in an electronic circuit? A) A capacitor amplifies the input signal in a circuit. B) A capacitor stores electrical energy and releases it when needed. C) A capacitor converts AC to DC voltage. D) A capacitor acts as a resistor in high-frequency applications. Show Answer Correct Answer: B) A capacitor stores electrical energy and releases it when needed. 10. The total number of atoms in a FCC unit cell are A) 1. B) 4. C) 6. D) 2. Show Answer Correct Answer: B) 4. 11. In Physics lab the laser we use is A) He-Ne laser. B) Diode laser. C) Both. D) None of the above. Show Answer Correct Answer: C) Both. 12. ..... shows both schottky and frenkel defect. A) AgCl. B) NaCl. C) AgBr. D) ZnS. Show Answer Correct Answer: C) AgBr. 13. What is the main advantage of solid-state storage in terms of durability? A) Resistant to being dropped. B) High capacity. C) Low cost. D) Relies on mechanical arm. Show Answer Correct Answer: A) Resistant to being dropped. 14. Metals are good conductor of heat and electricity . This property is called A) Metallic. B) Covalent. C) Ionic. D) None of above. Show Answer Correct Answer: A) Metallic. 15. A substance that can be pulled into thin strands of wire is said to be ..... A) Inelastic. B) Ductile. C) Adhesive. D) Malleable. Show Answer Correct Answer: B) Ductile. 16. In Frenkel defect, A) Electrical neutrality of the substance is changed. B) Density of the substance is changed. C) Both cation and anion are missing. D) Overall electrical neutrality is preserved. Show Answer Correct Answer: D) Overall electrical neutrality is preserved. 17. The compound CuCl has Zns structure and the edge length of its unit cell is 500 pm. Calculate its density (Atomic masses:Cu=63.5u, Cl=35.5 Avogardo's constant=6.02 X 10$^{23 }$mol$^{-1}$). A) 2.16g/cm$^{3}$. B) 5.24g/cm$^{3}$. C) 7.24g/cm$^{3}$. D) 6.16g/cm$^{3}$. Show Answer Correct Answer: B) 5.24g/cm$^{3}$. 18. AgCl A) White, soluble. B) Whte, insoluble. C) Yellow, soluble. D) Yellow, insoluble. Show Answer Correct Answer: B) Whte, insoluble. 19. What is boiling point at higher pressure? A) Lower. B) Higher. C) Same. D) Cannot say. Show Answer Correct Answer: B) Higher. 20. The activation energy of a reaction at a given temperature is found to be 2.303 RT J mol$^{-1}$. The ratio of rate constant to the Arrhenius factor is A) 0.1. B) 0.01. C) 0.001. D) 0.02. Show Answer Correct Answer: A) 0.1. 21. At low temperatures the lattice specific heat varies as ..... A) T3. B) 1/T3. C) T. D) 1/T. Show Answer Correct Answer: A) T3. 22. *Which of the following is not true about the ionic solids? A) Bigger ions form the close packed structure. B) Smaller ions occupy either the tetrahedral or the octahedral voids depending upon their size. C) *Occupation of all the voids is not necessary. D) *The fraction of octahedral or tetrahedral voids occupied depends upon the radii of the ions occupying the voids. Show Answer Correct Answer: D) *The fraction of octahedral or tetrahedral voids occupied depends upon the radii of the ions occupying the voids. 23. Alloys are examples of A) Pure solids. B) Liquid solutions. C) Solid solutions. D) Colloids. Show Answer Correct Answer: C) Solid solutions. 24. How does temperature affect the performance of a diode? A) Temperature affects diode performance by decreasing forward voltage drop and increasing reverse saturation current. B) Temperature increases forward voltage drop and decreases reverse saturation current. C) Temperature has no effect on diode performance or characteristics. D) Temperature only affects the physical size of the diode without impacting its function. Show Answer Correct Answer: A) Temperature affects diode performance by decreasing forward voltage drop and increasing reverse saturation current. 25. The consideration involved in the selection of the type of electric drive for a particular application depends on A) Speed control range and its nature. B) Starting torque. C) Environmental conditions. D) All of the above. Show Answer Correct Answer: D) All of the above. ← 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