This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 20 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How many tetrahedral voids are present in cubic close packed crystal structure? A) 4. B) 8. C) 12. D) 6. Show Answer Correct Answer: B) 8. 2. For the following electrochemical cell at 298 K, Pt$_{(s)}$ | H$_{2(g, 1 bar) }$| H$^{+}$$_{(aq, 1M)}$|| M$^{4+}$$_{(aq}$), M$^{2+}$$_{(aq)}$ | Pt$_{(s)}$E$_{cell}$ = 0.092 V when =10$^{x}$. Given:E$^{O}$$_{M}$$^{4+}$$_{(aq)/ M}$$^{2+}$ = 0.151 V; 2.303 = 0.0591V The value of x is A) -2. B) -1. C) 1. D) 2. Show Answer Correct Answer: D) 2. 3. Which type of drive system is used in travelling cranes? A) Group Drive. B) Individual Drive. C) Multimotor drive. D) DC drive. Show Answer Correct Answer: C) Multimotor drive. 4. The coordination number of two dimensional HCP = ..... A) 2. B) 4. C) 6. D) 12. Show Answer Correct Answer: C) 6. 5. Experimentally it was found that a metal oxide has formula M$_{0.98}$O. Metal M, is present as M$^{2+}$ and M$^{3+}$ in its oxide. Fraction of the metal which exists as M$^{3+}$ would be A) 7.01%. B) 3.97%. C) 5.10%. D) 4.08%. Show Answer Correct Answer: D) 4.08%. 6. Percentage of free space in bcc lattice is: A) 32. B) 24. C) 48. D) 52. Show Answer Correct Answer: A) 32. 7. A few substances like iron, cobalt, nickel, gadolinium and CrO2 are attracted very strongly by a magnetic field. Such substances are called A) Dimagnetic. B) Ferromagnetic. C) Paramagnetic. D) None of the above. Show Answer Correct Answer: B) Ferromagnetic. 8. The Crystal having highest melting point is A) Ionic Crystal. B) Covalent Crystal. C) Molecular crystal. D) Metallic Crystal. Show Answer Correct Answer: B) Covalent Crystal. 9. Which. of the following material is amorphous A) Mica. B) Lead. C) Rubber. D) Glass. Show Answer Correct Answer: D) Glass. 10. The gravitational force between two masses is A) Repulsive. B) Attractive. C) Zero. D) Infinity. Show Answer Correct Answer: D) Infinity. 11. The appearance of colour in solid alkali metal halide is generally due to: A) Frenkel defect. B) Schottky defect. C) Vacancy defect. D) F-Centres. Show Answer Correct Answer: D) F-Centres. 12. Population inversion for Lasing action means A) More electrons in ground state than excited state. B) More electrons in any excited state than ground state. C) More electrons in 1st excited than ground state. D) More electrons in metastable state than ground state. Show Answer Correct Answer: D) More electrons in metastable state than ground state. 13. Silver forms ccp lattice and X-ray studies of its crystal show that the edge length of its unit cell is 408.6pm. Calculate the density of silver (Atomic mass = 107.9u). A) 9.7 g/cm$^{3}$. B) 10.5 g/cm$^{3}$. C) 12.4 g/cm$^{3}$. D) 10.9 g/cm$^{3}$. Show Answer Correct Answer: B) 10.5 g/cm$^{3}$. 14. What is the difference between classical and quantum models of electron behavior? A) Classical models use Maxwell-Boltzmann statistics, while quantum models use Fermi-Dirac statistics. B) Quantum models predict higher heat capacities than classical models. C) Both models are identical in their predictions. D) None of the above. Show Answer Correct Answer: A) Classical models use Maxwell-Boltzmann statistics, while quantum models use Fermi-Dirac statistics. 15. What is the coordination number of a HCP structure A) 6. B) 8. C) 12. D) 14. Show Answer Correct Answer: C) 12. 16. What type of stoichiomatric defect shown by nacl A) Schottky defect. B) Metal excess defect. C) Frenkal defect. D) Vacant. Show Answer Correct Answer: A) Schottky defect. 17. Density of Li atom is 0.53 g/cm$^{3}$. The edge length of Li is 35pm. Find out the number of Li atoms in a unit cell (N$_{A}$= 6.023 x 10$^{23}$, M= 6.94 g/mol). A) 4. B) 1. C) 2. D) 8. Show Answer Correct Answer: C) 2. 18. When 50 mL of ethanol and 50 mL of water are mixed, predict whether the volume of the solution is A) Equal to100 mL. B) Greater than 100 mL. C) Less than 100 mL. D) All of the above. Show Answer Correct Answer: B) Greater than 100 mL. 19. Which of following is diamagnetic substance? A) CO. B) Cu$^{2+}$. C) NaCl. D) MnO. Show Answer Correct Answer: C) NaCl. 20. If 'R' is the radius of the spheres in the close packed arrangement, then radius of the tetrahedral void is ..... ? A) 0.414 R. B) 0.225 R. C) 0.214 R. D) 0.425 R. Show Answer Correct Answer: B) 0.225 R. 21. What type os stoichiomatric defect is shown by Agl A) Schottky. B) Frenkal. C) All the above. D) None of the above. Show Answer Correct Answer: A) Schottky. 22. What is the role of doping in semiconductor physics? A) Doping stabilizes the temperature of semiconductors by insulating them. B) Doping increases the conductivity of semiconductors by adding charge carriers. C) Doping enhances the optical properties of semiconductors by reflecting light. D) Doping decreases the conductivity of semiconductors by removing charge carriers. Show Answer Correct Answer: B) Doping increases the conductivity of semiconductors by adding charge carriers. 23. The arrangement ABCABC ..... is referred to as ..... close packing. A) Octahedral. B) Hexagonal. C) Tetrahedral. D) Cubic. Show Answer Correct Answer: D) Cubic. 24. Weakest force of attraction found in which bond:- A) Ionic. B) Covalent. C) Metallic. D) Van der waal. Show Answer Correct Answer: D) Van der waal. 25. Addition of non volatile solute to a volatile solvent A) Increases the vapour pressure. B) No effect on vapour pressure. C) Contributes to vapour pressure. D) Lowers the vapour pressure. Show Answer Correct Answer: D) Lowers the vapour pressure. ← 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