This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 30 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 30 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ZnO is white when cold and yellow when heated, it is due to Development of A) Frenkel defect. B) Schottky Defect. C) Metal excess defect. D) Metal deficiency Defect. Show Answer Correct Answer: C) Metal excess defect. 2. The empty space in the hexagonal close packing is ..... % while that in the BCC is ..... % A) Around 26, around 32. B) Around 45, around 32. C) Around 74, around 68. D) None. Show Answer Correct Answer: A) Around 26, around 32. 3. C N of diamond(Carbon) A) 4. B) 2. C) 6. D) 8. Show Answer Correct Answer: D) 8. 4. Aluminium crystallizes in fcc. The edge length of unit cell of aluminium is 4.05. What is density of aluminium A) 2700 kg m-3. B) 2400 kg m-3. C) 3700 kg m-3. D) 4700 kg m-3. Show Answer Correct Answer: A) 2700 kg m-3. 5. The highest filled energy band in a solid is called A) Valence band. B) Conduction band. C) Fermi level. D) Equal level. Show Answer Correct Answer: A) Valence band. 6. The speed of a D.C. series motor is A) Proportional to the armature current. B) Proportional to the square of the armature current. C) Proportional to field current. D) Inversely proportional to the armature current. Show Answer Correct Answer: D) Inversely proportional to the armature current. 7. Each of the following solids shows the Frenkel defect except A) Zns. B) Agbr. C) Agl. D) Kcl. Show Answer Correct Answer: D) Kcl. 8. The field of an induction motor rotor rotates relative to the stator at A) Rotor speed. B) Synchronous speed. C) Slip speed. D) Very low speed. Show Answer Correct Answer: B) Synchronous speed. 9. N-type semiconductor are A) Negatively charged. B) Positively charged. C) Either Negatively or Positively charged. D) Neutral. Show Answer Correct Answer: D) Neutral. 10. Which welding process is commonly used for cladding and joining large pipes in the petrochemical industry? A) Cold Welding (CW). B) Diffusion Bonding (DFW). C) Explosive Welding (EXW). D) Ultrasonic Welding (USW). Show Answer Correct Answer: C) Explosive Welding (EXW). 11. In graphite, C-atoms form interlinked ..... membered rings. A) Four. B) Five. C) Six. D) Seven. Show Answer Correct Answer: C) Six. 12. A material has identical properties in all directions, it is said to be ..... A) Homogeneous. B) Isotropic. C) Anisotropic. D) Orthotropic. Show Answer Correct Answer: B) Isotropic. 13. Which welding process is effective for joining aluminum to steel? A) Ultrasonic Welding (USW). B) Explosive Welding (EXW). C) Friction Welding (FRW). D) Cold Welding (CW). Show Answer Correct Answer: C) Friction Welding (FRW). 14. Nanoscience can be studied with the help of A) Quantum mechanics. B) Newtonian mechanics. C) Macro-dynamics. D) Geophysics. Show Answer Correct Answer: A) Quantum mechanics. 15. Which types of solids are isotropic A) Amorphous solids. B) Crystalline solids. C) Both. D) None of the above. Show Answer Correct Answer: A) Amorphous solids. 16. Which in the following is an ionic giant structure? A) NaCl. B) Iodine. C) Water. D) None of the above. Show Answer Correct Answer: A) NaCl. 17. Amorphous solids are known as: A) True solids. B) Crystalline solids. C) Super cooled liquid. D) None of the above. Show Answer Correct Answer: C) Super cooled liquid. 18. For n-type semiconductor Si should be doped with an element with valence electrons A) 2. B) 5. C) 3. D) 1. Show Answer Correct Answer: B) 5. 19. In primitive cells the lattice points are ..... A) Only inside the cell. B) Only at the corners. C) Either inside the cell or at the corners. D) Neither inside the cell nor at the corners. Show Answer Correct Answer: B) Only at the corners. 20. Which of the following does not represent the type of crystal system?a. Triclinic.b. Monoclinicc. Rhombohedrald. Isotropical A) A. B) B. C) C. D) D. Show Answer Correct Answer: D) D. 21. What is the temperature dependence of charge carriers in semiconductors? A) Charge carrier concentration increases with temperature in semiconductors. B) Charge carriers are only present at absolute zero temperature in semiconductors. C) Temperature has no effect on charge carrier concentration in semiconductors. D) Charge carrier concentration decreases with temperature in semiconductors. Show Answer Correct Answer: A) Charge carrier concentration increases with temperature in semiconductors. 22. For a crystal, X-rays of wavelength 1.54 Angstrom irradiated ( 1 2 1 ) planes. If the inter planar spacing is 1.1 Angstrom, then the order of Bragg's diffraction is ..... A) 1. B) 2. C) 1.43. D) 2.43. Show Answer Correct Answer: A) 1. 23. What is one reason solid-state storage is considered more robust? A) Uses more energy. B) Has moving parts. C) No moving parts. D) High cost. Show Answer Correct Answer: C) No moving parts. 24. These substances make better permanent magnets A) Diamagnetism. B) Ferrimagnetism. C) Paramagnetism. D) Ferromagnetism. Show Answer Correct Answer: D) Ferromagnetism. 25. Amorphous solids are A) Solid substance in real sense. B) Liquid in real sense. C) Super cooled liquids. D) Substances with definite melting point. Show Answer Correct Answer: C) Super cooled liquids. ← 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