This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 25 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. Find out the correct structure of Potassium tetrafluorido Borate (III) A) K[BF5]. B) K[BF3]. C) K[BF2]. D) K[BF4]. Show Answer Correct Answer: D) K[BF4]. 3. 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. 4. Analysis shows that FeO has a non-stoichiometric composition with formula Fe$_{095}$O. Give reason. A) Schottky defect. B) Frenkel defect. C) Metal excess defect. D) Metal deficiency defect. Show Answer Correct Answer: D) Metal deficiency defect. 5. 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. 6. 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) 2.0X10$^{23}$. B) 5.0X10$^{23}$. C) 4.0X10$^{23}$. D) 6.0X10$^{23}$. Show Answer Correct Answer: D) 6.0X10$^{23}$. 7. 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) Face diagonal, Edge Body diagonal. C) Body diagonal, Face diagonal Edge. D) Edge, Body diagonal, Face diagonal. Show Answer Correct Answer: A) Edge, Face diagonal, Body diagonal. 8. 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. B) AB$_{2}$C. C) ABC$_{2}$. D) A$_{2}$BC. Show Answer Correct Answer: C) ABC$_{2}$. 9. Which solids are also called pseudo solid? A) Amorphous. B) Crystalline. C) Regular solid. D) True solid. Show Answer Correct Answer: A) Amorphous. 10. 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. 11. 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) 10 g cm$^{-3}$. B) 14.2 g cm$^{-3}$. C) 6.15 g cm$^{-3}$. D) 9.3 2 g cm$^{-3}$. Show Answer Correct Answer: C) 6.15 g cm$^{-3}$. 12. 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. 13. Dulong and Petit's law is used to determine ..... A) Thermal conductivity. B) Electrical conductivity. C) Specific heat capacity. D) Optical properties. Show Answer Correct Answer: C) Specific heat capacity. 14. Total number of Bravais lattices possible for Crystal system is A) 7. B) 14. C) 32. D) 230. Show Answer Correct Answer: B) 14. 15. 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. 16. Which of these is NOT secondary storage? A) USB. B) Google Drive. C) RAM. D) DVD. Show Answer Correct Answer: C) RAM. 17. 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 imurity is present in the lattice. Show Answer Correct Answer: B) Equal number of cations and anions are missing from the lattice. 18. ..... constraints are independent of time. A) Holonomic. B) Non-Holonomic. C) Scleronomous. D) Rheonomous. Show Answer Correct Answer: C) Scleronomous. 19. 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) 3. B) 2. C) 1. D) 4. Show Answer Correct Answer: B) 2. 20. Example for crystalline solid A) Glass. B) Quartz. C) Plastic. D) Rubber. Show Answer Correct Answer: B) Quartz. 21. The ratio of close-packed atoms to tetrahedral holes in cubic close packing is: A) 1:1. B) 1:2. C) 1:3. D) 1:4. Show Answer Correct Answer: B) 1:2. 22. ZnO turns yellow on heating. Why? A) Metal excess defect due to extra cation in the interstitial sites. B) Metal excess defect due to anion vacancy. C) Metal deficiency defect. D) Frenkel defect. Show Answer Correct Answer: A) Metal excess defect due to extra cation in the interstitial sites. 23. In graphite, electron are A) Localised on each carbon atom. B) Spread out between the sheets. C) Localised on every third carbon atom. D) Present in anti bonding crystal. Show Answer Correct Answer: B) Spread out between the sheets. 24. 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. 25. In Zinc blende structure, the coordination number of the cation is: A) 4. B) 8. C) 6. D) 12. Show Answer Correct Answer: A) 4. ← 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