This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Chemistry Part I > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An element with atomic mass 100 has a bcc structure and edge length 400 pm. The density of element is A) 2.14 g cm-3. B) 5.19 g cm-3. C) 7.29 g cm-3. D) 10.37 g cm-3. Show Answer Correct Answer: B) 5.19 g cm-3. 2. Each ferromagnetic material has a characteristic temperature above which its properties are different from those below it. The temperature is called A) Curie temperature. B) Faraday's temperature. C) Transition temperature. D) Demagnetisation temperature. Show Answer Correct Answer: A) Curie temperature. 3. Formula of radius ratio rule:- A) Radius of anion/ radius of cation. B) Radius of cation/ radius of anion. C) Area of cation/ radius of anion. D) None of these. Show Answer Correct Answer: B) Radius of cation/ radius of anion. 4. What is the maximum capacity of xD cards? A) 1 TB. B) 512 GB. C) 2 TB. D) 2 GB. Show Answer Correct Answer: D) 2 GB. 5. Ward leonard control system is mainly used for A) Low speed control. B) Less sensitive speed control. C) High speed control. D) Very sensitive speed control. Show Answer Correct Answer: D) Very sensitive speed control. 6. An excess of potassium ions makes KCl crystals appear violet or lilac in colour since A) Some of the anionic sites are occupied by an unpaired electrons. B) There are vacancies at some anionic sites. C) F centers are created which export colour to the crystals. D) Some of the anionic sites are occupied by a pair of electrons. Show Answer Correct Answer: A) Some of the anionic sites are occupied by an unpaired electrons. 7. The crystal lattice has a ..... arrangement. A) Four-dimensional. B) Three-dimensional. C) Two-dimensional. D) One-dimensional. Show Answer Correct Answer: B) Three-dimensional. 8. A cubic solid is made up of two elements X and Y . Atom Y are at the corners of the cube and X at the body centre . what is the formula of the compound? ..... A) X4Y. B) XY. C) X2Y2. D) XY2. Show Answer Correct Answer: B) XY. 9. An example of a body-centred cube is: A) Magnesium. B) Zinc. C) Sodium. D) Copper. Show Answer Correct Answer: C) Sodium. 10. Alkali halids do not show Frenkel defect because A) Cations and anions have almost equal size. B) There is a large difference in size of cations and anions. C) Cations and anions have low coordination number. D) Anions cannot be accommodated in voids. Show Answer Correct Answer: A) Cations and anions have almost equal size. 11. Cubic close packing arrangement is also known as: A) Hexagonal close packing. B) Face centered cubic. C) Body centered cubic. D) None of these. Show Answer Correct Answer: B) Face centered cubic. 12. Assertion:Amorphous solids are isotropic.Reason:They do not have definite heat of fusion. A) Assertion and reason both are correct statements and reason is correct explanation for assertion. B) Assertion and reason both are correct statements but reason is not correct explanation for assertion. C) Assertion is correct statement but reason is wrong statement. D) Assertion is wrong statement but reason is correct statement. Show Answer Correct Answer: B) Assertion and reason both are correct statements but reason is not correct explanation for assertion. 13. The mole fraction of a solute in its 2.5m solution would be A) 0.550. B) 0.025. C) 0.532. D) 0.043. Show Answer Correct Answer: D) 0.043. 14. This thermodynamic cycle is used to estimate lattice enthalpy. A) Ewald sphere. B) Haber-Bosch process. C) Born-Haber cycle. D) Bragg's law. Show Answer Correct Answer: C) Born-Haber cycle. 15. In which of the following pair, both the crystals are not of same type? A) Mg, Ar. B) SiC, diamond. C) NaCl, BaO. D) Ice, solid CO$_{2}$. Show Answer Correct Answer: A) Mg, Ar. 16. The compound formed by elements P and Q has a cubic structure in which P atoms are at the corners of the cube and Q atoms are at the face centres. What is the formula of the compound? A) PQ3. B) P3Q. C) PQ4. D) P4Q. Show Answer Correct Answer: A) PQ3. 17. Numbers of formula units in unit cells Mgo, Zns (zinc blende), and pt (fcc) respectively A) 4, 3, 2. B) 4, 3, 4. C) 4, 4, 4. D) 4, 3, 1. Show Answer Correct Answer: C) 4, 4, 4. 18. In METAL EXCESS DEFECTS the sites where an electron gets trapped in the anionic vacancy disturbing the ratio of cation to anion is known as A) F-CENTRE. B) I-CENTRE. C) E-CENTRE. D) G-CENTRE. Show Answer Correct Answer: A) F-CENTRE. 19. ..... means having identical values of physical properties in all direction A) Anisotropy. B) Isotropy. C) Crystalline. D) Amorphous. Show Answer Correct Answer: B) Isotropy. 20. The total number of atoms per unit cell in an fcc structure made up of a monatomic element is: A) 3. B) 4. C) 6. D) 2. Show Answer Correct Answer: B) 4. 21. If the unit cell of a mineral has cubic close packed (ccp) array of oxygen atoms with m fraction of octahedral holes occupied by aluminium ions and n fraction of tetrahedral holes occupied by magnesium ions, m and n, respectively, are A) 1/2, 1/2. B) 1/2, 1/8. C) 1/4, 1/8. D) 1, 1/4. Show Answer Correct Answer: B) 1/2, 1/8. 22. The number of atoms present in a unit cell of a monoatomic substance (element) of a simple cubic lattice, body-centred cubic and face-centred cubic respectively are A) 8, 9 and 14. B) 1, 2 and 4. C) 4, 5 and 6. D) 2, 3, and 5. Show Answer Correct Answer: B) 1, 2 and 4. 23. Diamond and graphite are which type of solids? A) Covalent and ionic respectively. B) Covalent and molecular respectively. C) Both covalent. D) Both molecular. Show Answer Correct Answer: C) Both covalent. 24. Arise due to cationic vacancies. It occurs when positive ions are missing from its crystal lattice.To maintain electrical neutrality, one of the nearest metal ion acquires two positive charge. The above statement describe about A) Metal Deficiency defect. B) Metal excess defect due to anionic vacancies. C) Metal addition defect. D) Metal excess defect due to extra cations. Show Answer Correct Answer: A) Metal Deficiency defect. 25. What is the full form of IGBT ..... ? A) Insulation gate bidirectional transistor. B) Insulated gate bidirectional transistor. C) Insulation gate bipolar transistor. D) Insulated gate bipolar transistor. Show Answer Correct Answer: D) Insulated gate bipolar transistor. 26. Silver halides generally show A) Schottky defect. B) Frenkel defect. C) Both Frenkel and Schottky defects. D) Cation excess defect. Show Answer Correct Answer: C) Both Frenkel and Schottky defects. 27. Ikatan solid-state melibatkan 1 atau lebih fenomena berikut, kecuali? A) Regangan. B) Gerakan antar muka relatif. C) Tekanan. D) Difusi. Show Answer Correct Answer: A) Regangan. 28. Monochromatic means that? A) Only two light wavelengths are distinguished. B) The light consist of three color. C) Thelight consist of only one color. D) The light consist of two colors. Show Answer Correct Answer: C) Thelight consist of only one color. 29. Copper crystal has a face-centred cubic lattice structure. Atomic radius of copper atom is 128 pm. Calculate the density of copper. Atomic mass of copper=63.5u. A) 8.9g/cm$^{3}$. B) 42.16g/cm$^{3}$. C) 32.9g/cm$^{3}$. D) 22.9g/cm$^{3}$. Show Answer Correct Answer: A) 8.9g/cm$^{3}$. 30. What is the total number of Bravais lattices in the crystal structures? A) 14. B) 6. C) 24. D) 3. Show Answer Correct Answer: A) 14. 31. The number of atoms in hcp unit cell? A) 4. B) 12. C) 17. D) 6. Show Answer Correct Answer: D) 6. 32. Experimentally it was found that a metal oxide has formula M$_{0.98}$O. Metal M, present as M$^{2+}$ and M$^{3+}$ in its oxide. Fraction of the metal which exists as M$^{3+}$ would be A) 5.08%. B) 7.01%. C) 4.08%. D) 6.05%. Show Answer Correct Answer: C) 4.08%. 33. Crystals have a regularly repeating pattern that extends theoretically to infinity; this is called? A) Close packing. B) Long-range order. C) Structural entropy. D) FCC Array. Show Answer Correct Answer: B) Long-range order. 34. A form of matter that has a definite shape, volume, and density is called? A) Liquid. B) Gas. C) Solid. D) Plasma. Show Answer Correct Answer: C) Solid. 35. The relationship between the radius (r) of the octahedral void and the radius (R) of the atoms in close packing is A) R = 0.155 R. B) R = 0.225 R. C) R = 0.732 R. D) R = 0.414 R. Show Answer Correct Answer: D) R = 0.414 R. 36. The coordination number of C in graphite is A) 8. B) 6. C) 3. D) 4. Show Answer Correct Answer: C) 3. 37. Crystalline solid are: A) Glass. B) Sugar. C) Rubber. D) Plastic. Show Answer Correct Answer: B) Sugar. 38. Packing efficiency of body centred unit cell A) 54. B) 52. C) 74. D) 68. Show Answer Correct Answer: D) 68. 39. What is the unit cell in CCP of spheres A) Simple cubic. B) BCC. C) FCC. D) Hexagonal. Show Answer Correct Answer: C) FCC. 40. If Z is the number of atoms in the cell that represents the closest packing sequence ABCABC ..... the number of tetrahedral voids in the unit cell is A) Z. B) Z/4. C) Z/2. D) 2Z. Show Answer Correct Answer: D) 2Z. 41. Waste from nuclear plants and thermal plants are classified as A) Urban waste. B) Industrial waste. C) Hazardous waste. D) None of the above. Show Answer Correct Answer: B) Industrial waste. 42. The electric traction is which type of load A) Constant torque load. B) Torque proportional to Square of the Speed. C) Torque inversely proportional to the Speed. D) Torque proportional to the Speed. Show Answer Correct Answer: C) Torque inversely proportional to the Speed. 43. When constituent particles are present only at the corners of a cubic unit cell is called A) Primitive unit cell. B) FCC unit cell. C) BCC unit cell. D) All of these. Show Answer Correct Answer: A) Primitive unit cell. 44. All of the following share the same crystal structure except A) RbCl. B) CsCl. C) NaCl. D) LiCl. Show Answer Correct Answer: B) CsCl. 45. Which device commonly uses SD cards? A) Old floppy disk drives. B) Desktop computers. C) Digital cameras. D) Mainframe computers. Show Answer Correct Answer: C) Digital cameras. 46. The number of octahedral sites per sphere in fcc is A) 1. B) 4. C) 2. D) 8. Show Answer Correct Answer: A) 1. 47. The life time of an excited state in case of metastable state is ..... sec A) 10$^{-6}$. B) 10$^{-5}$. C) 10$^{-3}$. D) 10$^{-8}$. Show Answer Correct Answer: C) 10$^{-3}$. 48. End centered lattices are found in A) Hexagonal. B) Monoclinic. C) Triclinic. D) Cubic. Show Answer Correct Answer: B) Monoclinic. 49. A Match Box exhibits ..... geometry A) Orthorhombic. B) Tetragonal. C) Monoclinic. D) Cubic. Show Answer Correct Answer: A) Orthorhombic. 50. 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. 51. 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) 4. C) 2. D) 8. Show Answer Correct Answer: D) 8. 52. ..... solids have a long range order A) Amorphous. B) Crystalline. C) Pseudo solids. D) PVC. Show Answer Correct Answer: B) Crystalline. 53. Which of the following energy is absorbed during the change of state of a substance? A) Heat of solution. B) Specific heat. C) Heat capacity. D) Latent heat. Show Answer Correct Answer: D) Latent heat. 54. In a paper mill where constant speed is required A) Synchronous motors are preferred. B) Group drive is preferred. C) Individual drive is preferred. D) AC motors are preferred. Show Answer Correct Answer: C) Individual drive is preferred. 55. LiF is a/an ..... crystal. A) Ionic. B) Metallic. C) Covalent. D) Molecular. Show Answer Correct Answer: C) Covalent. 56. What are the three regions of a transistor and their functions? A) Emitter, Base, Collector. B) Input, Output, Control. C) Source, Drain, Gate. D) Anode, Cathode, Gate. Show Answer Correct Answer: A) Emitter, Base, Collector. 57. Adiabatic demagnetization is used to achieve ..... A) Room temperature. B) Low temperature. C) High temperature. D) Magnetic resonance. Show Answer Correct Answer: B) Low temperature. 58. 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. 59. Diamagnetic substance has unpaired electrons A) 2. B) 4. C) 1. D) 0. Show Answer Correct Answer: D) 0. 60. Potassium dichromate belongs to which crystal system? A) Orthorhombic. B) Triclinic. C) Detragonal. D) Hexagonal. Show Answer Correct Answer: B) Triclinic. ← PreviousNext →Related QuizzesScience QuizzesClass 12 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 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books