This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 50 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 50 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In a face-centered cubic lattice, a unit cell is shared equally by how many unit cells? A) 2. B) 4. C) 6. D) 8. Show Answer Correct Answer: C) 6. 2. 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. 3. 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. 4. Which of the following covalent compounds conduct electricity? A) Silica. B) Graphite. C) Diamond. D) Hydrogen chloride. Show Answer Correct Answer: B) Graphite. 5. Which of the following defects is also known as dislocation defect? A) Frenkel defect. B) Schottky defect. C) Non-stoichiometric defect. D) Simple interstitial defect. Show Answer Correct Answer: A) Frenkel defect. 6. Load torque which always oppose the motion and change their sign on reversal of motion are called A) Active load torque. B) Passive load torque. C) Friction load. D) Mechanical load. Show Answer Correct Answer: B) Passive load torque. 7. 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. 8. 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) Point defect. B) Frenkel defect. C) Schottky defect. D) Non-stoichiometric. Show Answer Correct Answer: C) Schottky defect. 9. Which type of card is primarily used in Olympus and Fujifilm cameras? A) SD cards. B) CFast cards. C) XD cards. D) USB flash drives. Show Answer Correct Answer: C) XD cards. 10. In a Schottky defect A) An ion moves to interstitial position between the lattice points. B) Electrons are trapped in a lattice site. C) Some lattice sites are vacant. D) Some extra cations are present in interstitial space. Show Answer Correct Answer: C) Some lattice sites are vacant. 11. 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) & (iii) are correct. C) (iii) & (iv) are correct. D) (ii) & (iv) are correct. Show Answer Correct Answer: D) (ii) & (iv) are correct. 12. 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) X $_{2}$Y. B) X $_{4}$Y. C) XY. D) XY $_{2}$. Show Answer Correct Answer: C) XY. 13. Explain the concept of Bravais lattices. A) Bravais lattices are a type of chemical bond. B) Bravais lattices are 14 distinct lattice types that describe the periodic arrangement of points in a crystal. C) Bravais lattices refer to the arrangement of atoms in a gas. D) Bravais lattices are used to describe molecular structures. Show Answer Correct Answer: B) Bravais lattices are 14 distinct lattice types that describe the periodic arrangement of points in a crystal. 14. 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. 15. 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. 16. Which of the following is the best braking method? A) Friction. B) Electromechanical action. C) Eddy-currents. D) Electric braking. Show Answer Correct Answer: D) Electric braking. 17. The ratio of number of atoms present in a simple cubic, body centered cubic and face structure are respectively. A) 8:1:6. B) 1:2:4. C) 4:2:1. D) 4:2:3. Show Answer Correct Answer: B) 1:2:4. 18. Pure silicon is a/an A) Insulator. B) Semiconductor. C) Conductor. D) None of these. Show Answer Correct Answer: B) Semiconductor. 19. The contribution from various lattice site in cubic unit cell is given. which is incorrect? A) Corner-1/8. B) Face 1/6. C) Body 1. D) Edge 1/4. Show Answer Correct Answer: B) Face 1/6. 20. The type defect observed in ionic crystals which large difference in the size of ions is: A) Interstitial defect. B) Frenkel defect. C) Schottky Defect. D) Stoichiometric Defect. Show Answer Correct Answer: B) Frenkel defect. 21. Percentage of free space in cubic close packed structure and in body centered packed structure are respectively A) 30% and 26%. B) 26% and 32%. C) 32% and 48%. D) 48% and 26%. Show Answer Correct Answer: B) 26% and 32%. 22. 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. 23. What is the potential barrier in a PN junction diode? A) The potential barrier is the type of semiconductor material used. B) 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. C) The potential barrier is the temperature of the diode. D) The potential barrier is the physical thickness of the diode. Show Answer Correct Answer: B) 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. 24. Which one of the following is the property of an ionic compound? A) High melting and boiling points. B) Low melting and boiling points. C) Weak inter-atomic forces. D) Non conductors of electricity. Show Answer Correct Answer: A) High melting and boiling points. 25. Diamond is A) Isotropic. B) Anisotropic. C) None of the above. D) None of the above. Show Answer Correct Answer: B) Anisotropic. ← 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