This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 1 Solid State – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 1 Solid State Quiz 24 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl? A) 0.625 g NaCl. B) 625 g NaCl. C) 36.56 g NaCl. D) 0.04 mol NaCl. Show Answer Correct Answer: C) 36.56 g NaCl. 2. The interstitial hole is called tetrahedral because ..... A) It is formed by six spheres. B) It is tetrahedral in shape. C) It is formed by four spheres and the centre form a regular tetrahedron. D) It is formed by three spheres. Show Answer Correct Answer: C) It is formed by four spheres and the centre form a regular tetrahedron. 3. Silicon doped with electron rich impurity forms A) P type semi conductor. B) N type semi conductor. C) Intrinsic semiconductor. D) Insulator. Show Answer Correct Answer: B) N type semi conductor. 4. The number of atoms in bcc arrangement is A) 1. B) 2. C) 4. D) 6. Show Answer Correct Answer: B) 2. 5. As temperature Increase, Conductivity of Ionic solids A) Increase. B) Decrease. C) Remains same. D) None of the above. Show Answer Correct Answer: A) Increase. 6. Example of ferromagnetic substance is A) KMno4. B) Nacl. C) Fe3O4. D) Co. Show Answer Correct Answer: C) Fe3O4. 7. What is the significance of a NOT gate in digital circuits? A) The NOT gate regulates power flow, ensuring stability in electronic devices. B) The NOT gate inverts the input signal, providing essential functionality in digital circuits. C) The NOT gate combines multiple signals, creating complex outputs in digital systems. D) The NOT gate amplifies the input signal, enhancing performance in circuits. Show Answer Correct Answer: B) The NOT gate inverts the input signal, providing essential functionality in digital circuits. 8. In 3D close packing the ABCABCABC ..... pattern gives rise to which type of close packing? A) Hexagonal Close Packing (hcp). B) Cubic Close Packing (ccp). C) Face Centred Cubic Packing (fcc). D) Both ccp and fcc. Show Answer Correct Answer: D) Both ccp and fcc. 9. A tetrahedral void in a crystal implies that A) Shape of the void is tetrahedral. B) Molecules forming the void are tetrahedral in shape. C) The void is surrounded tetrahedrally by four spheres. D) The void is surrounded by six spheres. Show Answer Correct Answer: C) The void is surrounded tetrahedrally by four spheres. 10. ABCABC type of arrangement of different layers, closest packed structure is called A) Hcp. B) Bcc. C) Fcc. D) Ccp. Show Answer Correct Answer: D) Ccp. 11. What is the primary characteristic of the interface created by friction welding? A) Smooth and even. B) Brittle and porous. C) Wavy and undulating. D) Non-existent. Show Answer Correct Answer: C) Wavy and undulating. 12. The units of ebullioscopic constant and cryoscopic constant are the same. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 13. Which of the following is the characteristic of a crystalline solid A) Sharp melting point. B) Short-range order. C) Irregular arrangement. D) Indefinite heat of fusion. Show Answer Correct Answer: A) Sharp melting point. 14. The ratio of close packed atoms to tetrahedral hole in cubic packing is A) 1:1. B) 1:2. C) 2:1. D) 1:4. Show Answer Correct Answer: B) 1:2. 15. Which point defect of its crystal does not alter the density of solid A) Frenkel defect. B) Schottky defect. C) Both. D) None of the above. Show Answer Correct Answer: A) Frenkel defect. 16. Intensity for allowed reflations in fcc: A) $f^2$. B) $16f^2$. C) $4f^2$. D) $2f^2$. Show Answer Correct Answer: B) $16f^2$. 17. Which defect is commonly seen in AgBr crystal? A) Schottky defect. B) Frenkel defect. C) Metal excess defect. D) Metal deficiency defect. Show Answer Correct Answer: A) Schottky defect. 18. Calculate the number of atoms in a cubic based unit cell having one atom on each corner and two atoms on each diagonal of face. A) 7. B) 9. C) 4. D) 6. Show Answer Correct Answer: A) 7. 19. Dry Ice is A) CO. B) CO2. C) SiC. D) Graphite. Show Answer Correct Answer: B) CO2. 20. How many total atoms are present per unit cell of primitive, BCC, FCC A) 1, 4, 2. B) 1, 2, 4. C) 4, 2, 1. D) 8, 9, 12. Show Answer Correct Answer: B) 1, 2, 4. 21. Which of the following are not properties of solid? A) They have definite mass, volume and shape. B) Inter molecular forces are weak. C) Inter molecular distances are short. D) They are incompresible and rigid. Show Answer Correct Answer: B) Inter molecular forces are weak. 22. The lattice constant of a unit cell of a cube is 3.28 Angstrom. The interplanar spacing of ( 2 0 1 ) plane is ..... Angstrom. A) 1.093. B) 1.467. C) 1.641. D) 0.986. Show Answer Correct Answer: B) 1.467. 23. What does the Sommerfeld model correct in the classical prediction of heat capacity? A) It accounts for only electrons near the Fermi surface contributing to heat capacity. B) It states that all electrons contribute equally. C) It eliminates the concept of heat capacity. D) None of the above. Show Answer Correct Answer: A) It accounts for only electrons near the Fermi surface contributing to heat capacity. 24. A technique to analyze crystal structure is ..... A) Infrared spectroscopy. B) X-ray diffraction (XRD). C) Calorimetry. D) Resistivity measurement. Show Answer Correct Answer: B) X-ray diffraction (XRD). 25. Which of the following solid shows electrical conduction? A) Graphite. B) KCl. C) Diamond. D) NaCl. Show Answer Correct Answer: A) Graphite. ← 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