This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The number of octahedral sites per sphere in fcc is A) 8. B) 4. C) 2. D) 1. Show Answer Correct Answer: D) 1. 2. The life time of an excited state in case of metastable state is ..... sec A) 10$^{-6}$. B) 10$^{-3}$. C) 10$^{-8}$. D) 10$^{-5}$. Show Answer Correct Answer: B) 10$^{-3}$. 3. End centered lattices are found in A) Monoclinic. B) Cubic. C) Triclinic. D) Hexagonal. Show Answer Correct Answer: A) Monoclinic. 4. A Match Box exhibits ..... geometry A) Cubic. B) Monoclinic. C) Orthorhombic. D) Tetragonal. Show Answer Correct Answer: C) Orthorhombic. 5. In which pair most efficient packing is present? A) Hcp and bcc. B) Hcp and ccp. C) Bcc and ccp. D) Bcc and sc. Show Answer Correct Answer: B) Hcp and ccp. 6. PbO (panas) A) Yellow, insoluble. B) Yellow, soluble. C) Brown, insoluble. D) Brown, soluble. Show Answer Correct Answer: C) Brown, insoluble. 7. Ice crystallises in a hexagonal lattice having a volume the unit cell as 264 x10 cm If density of ice at given temperature is 1.84 g cm the number of H$_{2}$o molecules per unit cell is A) 1. B) 2. C) 4. D) 8. Show Answer Correct Answer: D) 8. 8. ..... solids have a long range order A) Amorphous. B) Crystalline. C) Pseudo solids. D) PVC. Show Answer Correct Answer: B) Crystalline. 9. Which of the following energy is absorbed during the change of state of a substance? A) Specific heat. B) Latent heat. C) Heat capacity. D) Heat of solution. Show Answer Correct Answer: B) Latent heat. 10. In a paper mill where constant speed is required A) Synchronous motors are preferred. B) AC motors are preferred. C) Individual drive is preferred. D) Group drive is preferred. Show Answer Correct Answer: C) Individual drive is preferred. 11. LiF is a/an ..... crystal. A) Ionic. B) Metallic. C) Covalent. D) Molecular. Show Answer Correct Answer: C) Covalent. 12. Solid CH4 is A) Ionic solid. B) Molecular solid. C) Covalent solid. D) Does not exist. Show Answer Correct Answer: B) Molecular solid. 13. What are the three regions of a transistor and their functions? A) Emitter, Base, Collector. B) Source, Drain, Gate. C) Anode, Cathode, Gate. D) Input, Output, Control. Show Answer Correct Answer: A) Emitter, Base, Collector. 14. Adiabatic demagnetization is used to achieve ..... A) High temperature. B) Low temperature. C) Room temperature. D) Magnetic resonance. Show Answer Correct Answer: B) Low temperature. 15. Coordination of CsCl is found to change into 6:6 on A) Applying high p. B) Increase in temperature. C) Both (a) and (b). D) None of the above. Show Answer Correct Answer: B) Increase in temperature. 16. Diamagnetic substance has unpaired electrons A) 2. B) 1. C) 0. D) 4. Show Answer Correct Answer: C) 0. 17. Potassium dichromate belongs to which crystal system? A) Detragonal. B) Orthorhombic. C) Triclinic. D) Hexagonal. Show Answer Correct Answer: C) Triclinic. 18. Packing efficiency of face centred unit cell A) 52. B) 74. C) 68. D) 55. Show Answer Correct Answer: B) 74. 19. Graphite is a good conductor of electricity due to the presence of A) Lone pairs of electrons. B) Free valence electrons. C) Cations. D) Anions. Show Answer Correct Answer: B) Free valence electrons. 20. A. Ionic solids are hard and brittle. B. Covalent solids are good conductors. A) A and B are correct. B) A is correct. C) B is correct. D) Both A and B are wrong. Show Answer Correct Answer: B) A is correct. 21. In a face centred cubic lattice, atom A occupies the corner positions and atom B occupies the face centre positions. If one atom of B is missing from one of the face centred points, the formula of the compound is A) A$_{2}$B$_{3}$. B) A$_{2}$B$_{5}$. C) A$_{2}$B. D) AB$_{2}$. Show Answer Correct Answer: B) A$_{2}$B$_{5}$. 22. How many unit cells share a corner in a crystal lattice A) 2. B) 4. C) 8. D) 12. Show Answer Correct Answer: C) 8. 23. Relay state solid yang diisolasi dengan transformator menggunakan transformator frekuensi tinggi untuk memisahkan sisi input dan output perangkat secara elektrik. Transformator biasanya dikopel dengan amplifier isolasi untuk memberikan tingkat perlindungan yang diperlukan. Ini adalah jenis SSR A) Transformer Isolated SSR. B) Photo Coupled SSR. C) Reed Isolated SSR. D) Hybrid SSR. Show Answer Correct Answer: A) Transformer Isolated SSR. 24. For an SCR in the forward blocking mode (practically) A) Leakage current does not flow. B) Leakage current flows from anode to cathode. C) Leakage current flows from cathode to anode. D) Leakage current flows from gate to anode. Show Answer Correct Answer: B) Leakage current flows from anode to cathode. 25. In which of the following pair both the crystals are not of the same type A) Ice, solid CO2. B) NaCl, BaO. C) SiC, Diamond. D) Mg, Ar. Show Answer Correct Answer: D) Mg, Ar. ← 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