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 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 20 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A compound is made up of M and N atoms. M atoms form hcp arrangement while atoms of N occupy 2/3rd of octahedral voids. The formula of the compound is A) MN. B) M3N2. C) N3M2. D) M3N. Show Answer Correct Answer: B) M3N2. 2. The coordination # is ..... A) The elements of the molecules in a unit cell. B) The shape of the cubic unit cell. C) The number of atoms in the molecule. D) The number of atoms contributing to the unit cell. Show Answer Correct Answer: D) The number of atoms contributing to the unit cell. 3. In a given crystal, the inter planar spacing is 0.323 nm. The 2nd order maximum occurs at glancing angle 8 degree. The wavelength of incident ray is ..... Angstrom. A) 0.9. B) 0.45. C) 0.045. D) 0.09. Show Answer Correct Answer: B) 0.45. 4. What is a common use for solid-state storage devices? A) Storing data using integrated circuits. B) Storing data on tape. C) Storing data on optical discs. D) Storing data on magnetic disks. Show Answer Correct Answer: A) Storing data using integrated circuits. 5. The function of a crystal lattice is to ..... A) Make materials permanently liquid. B) Provide a regular pattern for atomic arrangement in solids. C) Eliminate all defects in materials. D) Prevent energy band formation. Show Answer Correct Answer: B) Provide a regular pattern for atomic arrangement in solids. 6. Atom arranged in simple unit cell at:- A) Corners. B) Face. C) In body. D) None of these. Show Answer Correct Answer: A) Corners. 7. Which of the following is a network solid or covalent crystalline solid? A) Iron Metal (Fe). B) Calcium Fluoride (CaF$_{2}$). C) H$_{2}$O (Ice). D) Diamond (C). Show Answer Correct Answer: D) Diamond (C). 8. Ni forms ..... in Nickel arsenide A) Simple. B) CCP. C) HCP. D) BCC. Show Answer Correct Answer: C) HCP. 9. Which of the following is true about metallic bonding? A) Electrons are localized. B) Electrons are delocalized. C) It is a weak bond. D) It has strong directional properties. Show Answer Correct Answer: B) Electrons are delocalized. 10. Example of Group Drive is A) Metal cutting. B) Saw mill. C) Rolling mills. D) Single Spindle drilling machine. Show Answer Correct Answer: C) Rolling mills. 11. Which of these is cloud storage? A) Google Drive. B) CD. C) Network server. D) USB Drive. Show Answer Correct Answer: A) Google Drive. 12. A crystalline solid has ..... ? A) Short range order. B) Long range order. C) Disordered arrangement. D) None of these. Show Answer Correct Answer: B) Long range order. 13. What is the equation for rms velocity A) $\sqrt[]{\frac{8RT}{\pi M}}$. B) $\sqrt[]{\frac{2RT}{M}}$. C) $\sqrt[]{\frac{3RT}{M}}$. D) $\sqrt[]{\frac{3RT}{\pi M}}$. Show Answer Correct Answer: C) $\sqrt[]{\frac{3RT}{M}}$. 14. Pure silicon at 0K is an A) Insulator. B) Metal. C) Intrinsic semiconductor. D) Extrinsic semiconductor. Show Answer Correct Answer: A) Insulator. 15. The hardest substance among the following is A) Be2C. B) SiC. C) Graphite. D) Titanium. Show Answer Correct Answer: B) SiC. 16. Crystal in which a=b=c and $\alpha$ $\beta$ $\gamma$ A) Triclinic. B) Tetragonal. C) Rhombohedral. D) Cubic. Show Answer Correct Answer: D) Cubic. 17. P can enter the crystal structure of group 14 element forms A) P type semi conductor. B) N-type semi conductor. C) All the above. D) None of the above. Show Answer Correct Answer: B) N-type semi conductor. 18. The 3D crystalline structure of solid state particles is called A) Amiphious. B) Amorphous. C) Lattice. D) Lantice. Show Answer Correct Answer: C) Lattice. 19. In a face-centered cubic lattice, a unit cell is shared equally by how many unit cells? A) 2. B) 6. C) 4. D) 8. Show Answer Correct Answer: B) 6. 20. List the sensing unit ..... A) Speed Sensing. B) Current Sensing. C) Speed and current sensing. D) Voltage and speed sensing. Show Answer Correct Answer: C) Speed and current sensing. 21. The yellow colour in NaCl crystal is due to A) Excitation of electrons in F centres. B) Reflection of light from Cl-ion on the surface. C) Refraction of light from Na+ ions. D) All of the above. Show Answer Correct Answer: A) Excitation of electrons in F centres. 22. Which of the following covalent compounds conduct electricity? A) Diamond. B) Graphite. C) Silica. D) Hydrogen chloride. Show Answer Correct Answer: B) Graphite. 23. Load torque which always oppose the motion and change their sign on reversal of motion are called A) Mechanical load. B) Passive load torque. C) Friction load. D) Active load torque. Show Answer Correct Answer: B) Passive load torque. 24. Differences of Drude's model and Somerfeld free electron theory is A) Drude used particle picture and Somerfeld used wave picture. B) Drude used wave picture and Somerfeld used particle picture. C) Drude used only electronic case and Somerfeld considered both electron and hole. D) Drude used both for electron and hole and Somerfeld used only for electron. Show Answer Correct Answer: A) Drude used particle picture and Somerfeld used wave picture. 25. From x-ray diffraction methods the unit length on Nacl observed to be 0.5627 pm .The density of Nacl is found to be 2.164 g cm3.the crystal shows A) Schottky defect. B) Non-stoichiometric. C) Frenkel defect. D) Point defect. Show Answer Correct Answer: A) Schottky defect. 26. Which type of card is primarily used in Olympus and Fujifilm cameras? A) XD cards. B) SD cards. C) CFast cards. D) USB flash drives. Show Answer Correct Answer: A) XD cards. 27. In a Schottky defect A) Some lattice sites are vacant. B) Some extra cations are present in interstitial space. C) An ion moves to interstitial position between the lattice points. D) Electrons are trapped in a lattice site. Show Answer Correct Answer: A) Some lattice sites are vacant. 28. Amorphous substances have ..... ?(i) definite heat of fusion.(ii) only short range order.(iii) only long range order.(iv) indefinite heat of fusion. A) (i) & (iii) are correct. B) (ii) & (iv) are correct. C) (iii) & (iv) are correct. D) (ii) & (iii) are correct. Show Answer Correct Answer: B) (ii) & (iv) are correct. 29. A compound is formed by two elements X and Y. Atoms of the element Y (as anions) make ccp and those of the element X (as cations) occupy all the octahedral voids. The formula of the compound is: A) XY. B) X $_{4}$Y. C) X $_{2}$Y. D) XY $_{2}$. Show Answer Correct Answer: A) XY. 30. Explain the concept of Bravais lattices. A) Bravais lattices are a type of chemical bond. B) Bravais lattices are used to describe molecular structures. C) Bravais lattices refer to the arrangement of atoms in a gas. D) Bravais lattices are 14 distinct lattice types that describe the periodic arrangement of points in a crystal. Show Answer Correct Answer: D) Bravais lattices are 14 distinct lattice types that describe the periodic arrangement of points in a crystal. 31. Which one is not te property of crystalline solid A) Isotropic. B) Sharp melting point. C) A definite and regular geometry. D) High intermolecular forces. Show Answer Correct Answer: A) Isotropic. 32. Assertion:Due to Frenkel defect, there is no effect on the density of the crystalline solid.Reason:In Frenkel defect, no cation or anion leaves the crystal. A) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion. B) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion. C) If Assertion is correct but Reason is incorrect. D) If both the Assertion and Reason are incorrect. Show Answer Correct Answer: A) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion. 33. Which of the following is the best braking method? A) Electromechanical action. B) Electric braking. C) Friction. D) Eddy-currents. Show Answer Correct Answer: B) Electric braking. 34. The ratio of number of atoms present in a simple cubic, body centered cubic and face structure are respectively. A) 4:2:3. B) 8:1:6. C) 4:2:1. D) 1:2:4. Show Answer Correct Answer: D) 1:2:4. 35. Pure silicon is a/an A) Insulator. B) Semiconductor. C) Conductor. D) None of these. Show Answer Correct Answer: B) Semiconductor. 36. The contribution from various lattice site in cubic unit cell is given. which is incorrect? A) Corner-1/8. B) Edge 1/4. C) Body 1. D) Face 1/6. Show Answer Correct Answer: D) Face 1/6. 37. The type defect observed in ionic crystals which large difference in the size of ions is: A) Interstitial defect. B) Schottky Defect. C) Frenkel defect. D) Stoichiometric Defect. Show Answer Correct Answer: C) Frenkel defect. 38. Which has a greater distance between particles? A) Solid. B) Liquid. C) All the above. D) None of the above. Show Answer Correct Answer: B) Liquid. 39. What is the potential barrier in a PN junction diode? A) The potential barrier is the physical thickness of the diode. B) The potential barrier is the temperature of the diode. C) The potential barrier in a PN junction diode is the electric field created in the depletion region that prevents charge carriers from crossing the junction. D) The potential barrier is the type of semiconductor material used. Show Answer Correct Answer: C) The potential barrier in a PN junction diode is the electric field created in the depletion region that prevents charge carriers from crossing the junction. 40. The longest wavelength that can be analysed by a NaCl crystal of interplanar spacing 0.281 nm between its principal planes, in the first order, is: A) 0.969 nm. B) 0.282 nm. C) 0.654 nm. D) 0.562 nm. Show Answer Correct Answer: D) 0.562 nm. 41. A group 14 element is to be converted into n-type semiconductor by doping it with suitable impurity. To which group should this impurity belong? A) Group 14. B) Group 12. C) Group 15. D) Group 13. Show Answer Correct Answer: C) Group 15. 42. Who was awarded Nobel prize for X-ray diffraction? A) Von Laue. B) J.M.Lehn. C) W.L.Bragg. D) W.H .Bragg. Show Answer Correct Answer: A) Von Laue. 43. The coordination number of atoms in body-centred cubic structure (bcc) is A) 4. B) 12. C) 6. D) 8. Show Answer Correct Answer: D) 8. 44. The point defect which increases the density of a solid is: A) Vacancy defect. B) Interstitial defect. C) Frenkel defect. D) Schottky defect. Show Answer Correct Answer: B) Interstitial defect. 45. Frenkel defect is also known as A) Dislocation Defect. B) Metal Excess Defect. C) Impurity Defect. D) Metal Deficiency Defect. Show Answer Correct Answer: A) Dislocation Defect. 46. For metals Conduction band and valence Band are A) Fully occupied. B) Empty. C) Partially occupied. D) Overlapping. Show Answer Correct Answer: D) Overlapping. 47. Which among the following will show anistotrophy A) Rubber. B) Plastic. C) Glass. D) NaBr. Show Answer Correct Answer: D) NaBr. 48. How many atoms are there in FCC crystal unit? A) 5. B) 3. C) 8. D) 4. Show Answer Correct Answer: D) 4. 49. Allowed miller indices For Structure factor of bcc: A) All (h+k+l) odd values. B) All (h+k+l) even values. C) All (h, k, l) values. D) All(h, k, l) even values. Show Answer Correct Answer: B) All (h+k+l) even values. 50. Frenkel 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: A) Some cations move from their lattice site to interstitial sites. 51. Metal excess defect arises due to A) Anionic vacancies. B) The presence of extra cations at interstitial sites. C) Cationic vacancies. D) Both (1) &(2). Show Answer Correct Answer: D) Both (1) &(2). 52. The unit cell with crystallographic dimensions a#b#c, alpha=gamma=90 and Betta#90 is A) Orthorhombic. B) Monoclinic. C) Tetragonal. D) Triclinic. Show Answer Correct Answer: B) Monoclinic. 53. The main advantage for selecting the Electrical drive is A) Expensive. B) Bulky. C) Reliability. D) High capital cost. Show Answer Correct Answer: C) Reliability. 54. Which of the following 0.1M aqueous solution will have the lowest freezing point A) Glucose. B) Sodium chloride. C) Potassium sulphate. D) Urea. Show Answer Correct Answer: C) Potassium sulphate. 55. Find whether the bonds are ionic or covalent-H-H A) Ionic. B) Covalent. C) None. D) None of the above. Show Answer Correct Answer: B) Covalent. 56. Solid A shows same value of electrical resistance in all directions, it is A) Crystalline solid. B) Molecular solid. C) Amorphous solid. D) Covalent solid. Show Answer Correct Answer: C) Amorphous solid. 57. At 0 K Conduction band will be A) Fully occupied. B) Completely empty. C) Partially occupied by electrons. D) Partially occupied by holes. Show Answer Correct Answer: B) Completely empty. 58. Why starters are required in a DC motor? A) Back emf of these motors is zero initially. B) These motors are not self-starting. C) These motors have high starting torque. D) To restrict armature current as there is no back emf at starting. Show Answer Correct Answer: D) To restrict armature current as there is no back emf at starting. 59. Ionic solid show conductance in:- A) Solid state. B) Gaseous. C) Liquid. D) All of these. Show Answer Correct Answer: C) Liquid. 60. A p-type semiconductor is obtained by doping silicon with: A) Al. B) O. C) P. D) C. Show Answer Correct Answer: A) Al. ← 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 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books