This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 32 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 32 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What types of void is formed at the body centre of a FCC unit cell A) Cubic. B) Tetrahedral. C) Octahedral. D) Trigonal. Show Answer Correct Answer: C) Octahedral. 2. Choose the correct optionassertion-due to frenkel defect there is no effect on density of crystalreason-in frenkel defect no ion leaves the crystal A) Both assertion and reason are correct and reason is correct explanation of assertion. B) Both assertion and reason are correct but reason is not the correct explanation of assertion. C) Assertion is correct but reason is incorrect. D) Both are incorrect. Show Answer Correct Answer: A) Both assertion and reason are correct and reason is correct explanation of assertion. 3. Which type of defect has the presence of cations in the interstitial sites? A) Frenkel defect. B) Schottky defect. C) Metal deficiency defect. D) Vacancy defect. Show Answer Correct Answer: A) Frenkel defect. 4. Smallest repeating unit of crystal lattice A) Lattice site. B) Unit cell. C) Crystal lattice. D) Lattice point. Show Answer Correct Answer: B) Unit cell. 5. Arrangement of sulphide ions in zinc blende is A) Simple cubic. B) Hcp. C) Bcc. D) Fcc. Show Answer Correct Answer: D) Fcc. 6. A compound contains two types of atoms X and Y. It crystallizes in a cubic lattice with atoms X at the corners of the unit cell and atoms Y at the body centre. The simplest possible formula of this compound is: A) X$_{8}$Y. B) X$_{2}$Y. C) XY. D) XY$_{8}$. Show Answer Correct Answer: C) XY. 7. Solid State Relay adalah jenis pengalih elektronik (sakelar elektronik) yang menggunakan komponen elektronika aktif untuk mengendalikan pengalihan arus dan tegangan listrik. Berbeda dengan Relay Elektromagnetik, Solid State Relay tidak menggunakan komponen mekanis atau kontaktor mekanis tetapi menggunakan komponen elektronika aktif seperti Thyristor adalah A) SCR dan IC. B) TRIAC dan IC. C) SCR dan DIODA. D) TRIAC dan SCR. Show Answer Correct Answer: D) TRIAC dan SCR. 8. The type of crystalline solid which is a good conductor in solid as well as molten state? A) Ionic Solid. B) Metallic Solid. C) Covalent Solid. D) Molecular Solid. Show Answer Correct Answer: B) Metallic Solid. 9. What happens when Fe$_{3}$O$_{4}$ is heated at 850 K? A) It converts into diamagnetic substance. B) It converts into ferromagnetic substance. C) It converts into paramagnetic substance. D) No effect. Show Answer Correct Answer: C) It converts into paramagnetic substance. 10. Which of the following machines has heavy fluctuating of load? A) Printing machine. B) Punching machine. C) Planer. D) Lathe. Show Answer Correct Answer: B) Punching machine. 11. When the deviations from ideal arrangement are around a point or an atom the defect is A) Line defect. B) Point defect. C) Impurity defect. D) None of the above. Show Answer Correct Answer: B) Point defect. 12. Copper crystalline in FCC with a unit cell length of 361pm. What is the radius of a copper atom? A) 127pm. B) 123pm. C) 181pm. D) 167pm. Show Answer Correct Answer: A) 127pm. 13. A semiconductor material A) Ga. B) As. C) Ge. D) Al. Show Answer Correct Answer: C) Ge. 14. At sufficient low temperature, solid has A) High thermal energy. B) Low Intermolecular force. C) High intermolecular forces. D) Very higher thermal energy. Show Answer Correct Answer: C) High intermolecular forces. 15. In an ionic compound AX, the radii of A+ and X-ions are 1 p.m. and 2 p.m. respectively the volume of the unit cell of the crystal AX will be A) 27 pm3. B) 64 pm3. C) 125 pm3. D) 216 pm3. Show Answer Correct Answer: D) 216 pm3. 16. Graphite cannot be classified as A) Conducting solid. B) Network solid. C) Covalent solid. D) Ionic solid. Show Answer Correct Answer: D) Ionic solid. 17. What is the coordination number in a square close packing structure in two dimensions A) 2. B) 3. C) 4. D) 6. Show Answer Correct Answer: C) 4. 18. What is the primary role of the rotating tool in friction stir welding? A) Generating electrical sparks. B) Applying shielding gas. C) Generating frictional heat. D) Casting a protective shadow. Show Answer Correct Answer: C) Generating frictional heat. 19. What is the coordination number of a sphere in the face centred cubic close packed structure of identical spheres? A) 6. B) 4. C) 12. D) 8. Show Answer Correct Answer: C) 12. 20. When mercuric iodide is added to the aqueous solution of KI, then the: A) Freezing point is raised. B) Freezing point is lowered. C) Freezing point does not change. D) Boiling point does not change. Show Answer Correct Answer: A) Freezing point is raised. 21. The functions of the power modulator if A) Select the mode of operation. B) Choose the type of motor. C) Control the source. D) Sense the Speed of load. Show Answer Correct Answer: A) Select the mode of operation. 22. The white ZnO turns yellow on heating because of A) Frenkel defect. B) Metal excess defect. C) Metal deficiency defect. D) Schottky defect. Show Answer Correct Answer: B) Metal excess defect. 23. Rohan is studying different types of materials in his chemistry class. He learns about solids and comes across a unique type of solid that does not have a regular structure. What defines this amorphous solid? A) Composed of randomly oriented atoms, ions, or molecules. B) Has a long-range order. C) Has a defined lattice structure. D) None of the above. Show Answer Correct Answer: A) Composed of randomly oriented atoms, ions, or molecules. 24. The maximum percentage of volume left unoccupied in a fcc system is ..... ? A) 36%. B) 47.6%. C) 32%. D) 26%. Show Answer Correct Answer: D) 26%. 25. The number of octahedral sites and tetrahedra sites per sphere in FCC structure A) 1 & 2. B) 4&8. C) 8&4. D) 2&4. Show Answer Correct Answer: A) 1 & 2. ← 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