This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 2 Solutions – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 37 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The smaller the particle size(large surface area per unit volume) means ..... A) Increase in solubility. B) Decrease in solubility. C) Increase in rate of solubility. D) Decrease in rate of solubility. Show Answer Correct Answer: C) Increase in rate of solubility. 2. A solution with a low concentration is ..... A) Concentrated. B) Dilute. C) Supersaturated. D) Saturated. Show Answer Correct Answer: B) Dilute. 3. How many solutions does this equation have?3z + 8 = 2 + 3z A) One Solution. B) No Solution. C) Many Solutions. D) None of the above. Show Answer Correct Answer: B) No Solution. 4. What is the process called when a solute dissolves in a solvent to form a solution? A) Dissolution. B) Precipitation. C) Evaporation. D) Condensation. Show Answer Correct Answer: A) Dissolution. 5. The substance to be dissolved in a liquid A) Solute. B) Solvent. C) Dissolve. D) Mixture. Show Answer Correct Answer: A) Solute. 6. Use the properties of equality to simplify each equation. Tell whether the equation has one, zero, or infinitely many solutions.3x-7 = 3(x-3) + 2 A) One solution. B) No solution. C) Infinitely many. D) Two solutions. Show Answer Correct Answer: C) Infinitely many. 7. In a chemistry class, King prepared a solution by mixing 25 g of sugar in 80 g of water. What are the concentrations of the solute and solvent in percent (%) by mass? A) Solute:34%, Solvent:66%. B) Solute:14%, Solvent:86%. C) Solute:24%, Solvent:76%. D) Solute:44%, Solvent:56%. Show Answer Correct Answer: C) Solute:24%, Solvent:76%. 8. Which of the following does not affect solubility of solutes? A) Tempearture. B) Color. C) Size particles. D) Kind of solute. Show Answer Correct Answer: B) Color. 9. Which salt below has the largest effect on freezing point? A) C$_{2}$H$_{4}$O$_{2}$. B) H$_{2}$S. C) LiBr. D) CaF$_{2}$. Show Answer Correct Answer: D) CaF$_{2}$. 10. What takes place when a solid changes to a liquid? A) Condensation. B) Freezing. C) Melting. D) Evaporation. Show Answer Correct Answer: C) Melting. 11. What is the difference between concentration and saturation? A) Concentration is a fixed % and saturation refers to amount of solute dissolved. B) Concentration refers to amount of solute dissolved and saturation is a fixed %. C) Nothing. D) All of the above. Show Answer Correct Answer: A) Concentration is a fixed % and saturation refers to amount of solute dissolved. 12. We have three aqueous solutions of NaCl labelled as 'A', 'B' and 'C' withconcentrations 0.1M, 0.01M and 0.001M, respectively. The value of van't Hofffactor for these solutions will be in the order ..... A) IA > iB > iC. B) IA < iB > iC. C) IA = iB = iC. D) IA < iB < iC. Show Answer Correct Answer: C) IA = iB = iC. 13. When carbon dioxide gas dissolves in water to make soda carbonated, what is the solute of this solution? A) Water. B) Carbon dioxide gas. C) Soda mixture. D) None of the above. Show Answer Correct Answer: B) Carbon dioxide gas. 14. What statements CAN BE TRUE about basic buffer?(you may choose more than one answer) A) Basic buffer usually works effectively at pH range of above 7. B) It's made of a mixture of strong base and salt of its conjugate acid. C) Adding small amount of strong acid to the solution of basic buffer can significantly alter the pH of the buffer solution. D) Diluting solution of basic buffer cause pH of that solution to change drastically. Show Answer Correct Answer: A) Basic buffer usually works effectively at pH range of above 7. 15. The value of Henry's constant K$_{H}$ is ..... A) (i) greater for gases with higher solubility. B) (ii) greater for gases with lower solubility. C) (iii) constant for all gases. D) (iv) not related to the solubility of gases. Show Answer Correct Answer: B) (ii) greater for gases with lower solubility. 16. The freezing point of a solution is ..... the freezing point of the pure solvent. A) The same as. B) Lower than. C) Higher than. D) No relation to. Show Answer Correct Answer: B) Lower than. 17. Which is an example of a mixture? A) A salad. B) An orange. C) Sand. D) Nuts. Show Answer Correct Answer: A) A salad. 18. If your final answer is x = x A) One Solution. B) No Solution. C) Infinite Many Solutions. D) None of the above. Show Answer Correct Answer: C) Infinite Many Solutions. 19. To dilute something means to A) Make it less concentrated or strong by adding something else. B) Keep it at the same concentration without adding anything else. C) Make it more concentrated by removing something else. D) Make it more diluted by adding something else. Show Answer Correct Answer: A) Make it less concentrated or strong by adding something else. 20. Containing the maximum amount of a solute A) Saturate. B) Dilute. C) Mixture. D) Physical change. Show Answer Correct Answer: A) Saturate. 21. What is density? A) The amount of matter in an object. B) The amount of space an object takes up. C) Measure of how tightly packed the molecules are in a substance. D) Measurement of the pull of gravity on an object. Show Answer Correct Answer: C) Measure of how tightly packed the molecules are in a substance. 22. What is the [OH-] if the pH is 4.9? (Hint:First find pOH. Then find [OH-].) A) 7.94 x 10-10 M. B) 1.0 x 10-4 M. C) 7.94 x 10-14 M. D) 4.9 x 10-10 M. Show Answer Correct Answer: A) 7.94 x 10-10 M. 23. What is the concentration, in percent by volume, of 15.3 mL of solute in 2.65 L of solution? A) 0.58%. B) 0.0058%. C) 5.8%. D) None of the above. Show Answer Correct Answer: A) 0.58%. 24. Which change occurs when lemon juice is mixed with water? A) The mass of the lemon juice decreases. B) The water becomes a solid. C) The lemon juice dissolves and spreads out evenly in the water. D) The volume of the water decreases. Show Answer Correct Answer: C) The lemon juice dissolves and spreads out evenly in the water. 25. Solution is a A) Homogenous mixture. B) Hetrogenous mixture. C) Pure substance. D) Compound. Show Answer Correct Answer: A) Homogenous mixture. ← PreviousNext →Related QuizzesClass 12 Chemistry (Part I) Chapter 2 Solutions Quiz 1Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 2Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 3Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 4Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 5Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 6Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 7Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 8Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 9Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books