This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 48 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 48 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... method of starting a three phase induction motor needs six terminals A) Resistance starting. B) Auto transformer. C) Star delta. D) None of the above. Show Answer Correct Answer: C) Star delta. 2. Calculate the efficiency of packing in case of metal crystal for simple cubic (with the assumption that atoms are touching each other). A) 52.4%. B) 62.4%. C) 54.4%. D) 72.4%. Show Answer Correct Answer: A) 52.4%. 3. Which of the following statement is not true about amorphous solid? A) On heating they may become crystalline at certain temperature. B) They may become crystalline on keeping for long time. C) Amorphous solids can be moulded by heating. D) They are anisotropic in nature. Show Answer Correct Answer: D) They are anisotropic in nature. 4. What is the Coordination numberof an atom in FCC or CCP structure? A) 4. B) 6. C) 8. D) 12. Show Answer Correct Answer: D) 12. 5. Which of the following describes the hexagonal close packed arrangement of spheres? A) ABCABA. B) ABCABC. C) ABABA. D) ABBABB. Show Answer Correct Answer: B) ABCABC. 6. Voids in FCC A) A. B) B. C) C. D) D. Show Answer Correct Answer: C) C. 7. An element has a bcc structure with cell edge of 288pm. The density of the element is 7.2 g/cm$^{3}$. How many atoms are present in 208 g of the element? A) 20.2 x 10$^{23}$ atoms. B) 36.45 x 10$^{23}$ atoms. C) 28.37 x 10$^{23}$ atoms. D) 24.17 x 10$^{23}$ atoms. Show Answer Correct Answer: D) 24.17 x 10$^{23}$ atoms. 8. Thallium chloride (TICl) crystallizes in a cubic lattic whose edge length is found to be 385 pm. If the density of the solid is found to be 7.0 g cm$^{-3}$, predict the type of lattice to which the crystals of TICl belong. (Atomic mass of TI=204, Cl=35.5) A) FCC. B) SC. C) BCC. D) HCP. Show Answer Correct Answer: C) BCC. 9. How does solid-state storage compare to HDD in terms of durability? A) Less durable due to moving parts. B) More durable due to no moving parts. C) Equally durable. D) Less durable due to high cost. Show Answer Correct Answer: B) More durable due to no moving parts. 10. The vacant space in bcc latice cell is ..... % A) 26. B) 48. C) 23. D) 32. Show Answer Correct Answer: D) 32. 11. Which approach can be employed to produce a high degree of homogeneity in the creation of ZnFe$_{2}$O$_{4}$ spinel? A) Distillation method. B) Vaporization method. C) Coprecipitation method. D) Crystallization method. Show Answer Correct Answer: C) Coprecipitation method. 12. Band theory is explained using A) Newtonian eqn. B) Schrodinger equation for 1D infinite pot. well prob. C) Schrodinger equation with Kronig Penny model with Bloch funciton. D) Schrodinger equation with Somerfeld model. Show Answer Correct Answer: C) Schrodinger equation with Kronig Penny model with Bloch funciton. 13. Elasticity is the ability of an object to return to its original form when external forces are removed. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. Which type of lattice is defined by three translation vectors? A) Bravais lattice. B) Cubic lattice. C) Primitive lattice. D) Hexagonal lattice. Show Answer Correct Answer: C) Primitive lattice. 15. Close packing is maximum in A) Simple Cube. B) FCC. C) BCC. D) End Face Centred. Show Answer Correct Answer: B) FCC. 16. Which of the following materials is often considered unsuitable for friction welding due to its brittleness? A) Aluminum. B) Copper. C) Ceramic. D) Rubber. Show Answer Correct Answer: C) Ceramic. 17. Silicon carbide is example of A) Molecular solid. B) Metallic solid. C) Ionic solid. D) Covalent solid. Show Answer Correct Answer: D) Covalent solid. 18. Determine the type of cubic lattices to which the iron crystal belongs if its unit cell has an edge length of 286 pm and the density of iron crystals is 7.86 g cm$^{-3}$. A) Simple cubic unit cell. B) FCC. C) BCC. D) None of the above. Show Answer Correct Answer: C) BCC. 19. Which of the following compounds is likely to show both Frankel and Schottky defects in its crystalline form? A) AgBr. B) CsCl. C) KBr. D) ZnS. Show Answer Correct Answer: A) AgBr. 20. ..... drive is also called as Line shaft drive A) .Individual drive. B) Multimotor drive. C) .Group Drive. D) None of the above. Show Answer Correct Answer: C) .Group Drive. 21. Define Schottky defect. A) When an atom occupies a definite position in the lattice that is not normally occupied in the perfect crystal. B) An atom is missing from its regular atomic site. C) An ion displaced from a regular site to an interstitial site in ionic crystal. D) A pair of one cation and one anion missing from regular sites in ionic crystal. Show Answer Correct Answer: D) A pair of one cation and one anion missing from regular sites in ionic crystal. 22. NaCl shows Schottky defects and AgCl Frenkel defects. Their electrical conductivity is due to ..... A) Motion of ions and not the motion of electrons. B) Motion of electrons and not the motion of ions. C) Lower coordination number of NaCl. D) Higher coordination number of AgCl. Show Answer Correct Answer: A) Motion of ions and not the motion of electrons. 23. In both HCP and CCP the coordination number is A) 12. B) 6. C) 4. D) 10. Show Answer Correct Answer: A) 12. 24. The molecules of hydrogen bonded molecular solids contain ..... covalent bonds between H and F, O or N atoms. A) Polar. B) Non polar. C) Coordinate. D) None of the above. Show Answer Correct Answer: A) Polar. 25. Generalized coordinates A) Depends on each other. B) Independent on each other. C) Necessarily spherical coordinates. D) May be Cartesian coordinate. Show Answer Correct Answer: A) Depends on each other. ← 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