This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 51 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 51 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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) 0.654 nm. B) 0.562 nm. C) 0.969 nm. D) 0.282 nm. Show Answer Correct Answer: B) 0.562 nm. 2. 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 13. B) Group 12. C) Group 14. D) Group 15. Show Answer Correct Answer: D) Group 15. 3. Who was awarded Nobel prize for X-ray diffraction? A) W.H .Bragg. B) W.L.Bragg. C) Von Laue. D) J.M.Lehn. Show Answer Correct Answer: C) Von Laue. 4. The coordination number of atoms in body-centred cubic structure (bcc) is A) 4. B) 6. C) 8. D) 12. Show Answer Correct Answer: C) 8. 5. The point defect which increases the density of a solid is: A) Schottky defect. B) Frenkel defect. C) Interstitial defect. D) Vacancy defect. Show Answer Correct Answer: C) Interstitial defect. 6. Frenkel defect is also known as A) Metal Deficiency Defect. B) Impurity Defect. C) Metal Excess Defect. D) Dislocation Defect. Show Answer Correct Answer: D) Dislocation Defect. 7. For metals Conduction band and valence Band are A) Fully occupied. B) Empty. C) Partially occupied. D) Overlapping. Show Answer Correct Answer: D) Overlapping. 8. Which among the following will show anistotrophy A) Glass. B) NaBr. C) Plastic. D) Rubber. Show Answer Correct Answer: B) NaBr. 9. How many atoms are there in FCC crystal unit? A) 8. B) 5. C) 4. D) 3. Show Answer Correct Answer: C) 4. 10. 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. 11. 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. 12. 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). 13. The unit cell with crystallographic dimensions a#b#c, alpha=gamma=90 and Betta#90 is A) Monoclinic. B) Tetragonal. C) Triclinic. D) Orthorhombic. Show Answer Correct Answer: A) Monoclinic. 14. The main advantage for selecting the Electrical drive is A) Bulky. B) Reliability. C) Expensive. D) High capital cost. Show Answer Correct Answer: B) Reliability. 15. Which of the following 0.1M aqueous solution will have the lowest freezing point A) Potassium sulphate. B) Sodium chloride. C) Urea. D) Glucose. Show Answer Correct Answer: A) Potassium sulphate. 16. 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. 17. 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. 18. 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. 19. 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. 20. Ionic solid show conductance in:- A) Solid state. B) Gaseous. C) Liquid. D) All of these. Show Answer Correct Answer: C) Liquid. 21. A p-type semiconductor is obtained by doping silicon with: A) P. B) Al. C) O. D) C. Show Answer Correct Answer: B) Al. 22. Packing fractions of BCC unit cell is A) 68%. B) 7.4%. C) 0.68%. D) 52.4%. Show Answer Correct Answer: C) 0.68%. 23. Ccp tallies with A) Bcc. B) Fcc. C) Hcp. D) None of these. Show Answer Correct Answer: B) Fcc. 24. Name the three types of crystal systems. A) Triclinic. B) Monoclinic. C) Hexagonal. D) Cubic, Tetragonal, Orthorhombic. Show Answer Correct Answer: D) Cubic, Tetragonal, Orthorhombic. 25. True or False:Amorphous solids have only a short range order A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. ← 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