This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Chemistry Part I > Class 12 Chemistry (Part I) Chapter 2 Solutions – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Stirring the solution increases or decreases the solubility? A) Increases. B) Decreases. C) All the above. D) None of the above. Show Answer Correct Answer: A) Increases. 2. Solutions are a special kind of mixture in which ..... A) Each object stays the same in the mixture. B) Substances are dissolved together. C) All the above. D) None of the above. Show Answer Correct Answer: B) Substances are dissolved together. 3. Which of the following is a solution? A) Sand. B) Concrete. C) Coffee. D) Chocolate cookie. Show Answer Correct Answer: C) Coffee. 4. A substance with 2 or more objects mixed together in which each KEEP their own physical properties. A) Solutions. B) Mixtures. C) Solids. D) None of the above. Show Answer Correct Answer: B) Mixtures. 5. True or False:Water heats up and cools down quickly A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 6. Solute + solvent = A) Solution. B) Equation. C) All the above. D) None of the above. Show Answer Correct Answer: A) Solution. 7. Is capable of being dissolved ..... A) Reactant. B) Product. C) Solubility. D) None of the above. Show Answer Correct Answer: C) Solubility. 8. The sum of all mole fractions equal A) 1. B) 0. C) 2. D) 0.1. Show Answer Correct Answer: A) 1. 9. How many grams of AgNO$_{3}$ (MM = 169.87) are needed to prepare 0.125M solution in 250 mL of water? A) 5.3g. B) .03g. C) 84.9g. D) 0.5g. Show Answer Correct Answer: A) 5.3g. 10. How many solutions does this equation have?3x = 9 A) One Solution. B) No Solution. C) Many Solutions. D) None of the above. Show Answer Correct Answer: A) One Solution. 11. Kool-Aid-Powder, sugar, and waterIdentify the solvent A) Water. B) Powder. C) Sugar. D) Powder and sugar. Show Answer Correct Answer: A) Water. 12. The concentration of a mixture can be increased in which of the following ways? A) Adding more water "solvent". B) Stirring the mixture. C) Heating the mixture. D) Adding more powder "solute". Show Answer Correct Answer: D) Adding more powder "solute". 13. When x = 16 in the equation2x-4 = 322( )-4 = 32IS IT TRUE OR FALSE? A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 14. I broke my arm when I fell off the playground and had to have a cast put on it. The red part of the sentence is the A) Probelm. B) Solution. C) All the above. D) None of the above. Show Answer Correct Answer: A) Probelm. 15. What is a liquid? A) A substance that flows freely but is of constant volume. B) A substance or matter in a state in which it will expand freely. C) Firm and stable in shape. D) None of the above. Show Answer Correct Answer: A) A substance that flows freely but is of constant volume. 16. When liquid water changes into steam it is: A) Dissolving. B) Melting. C) Condensing. D) Evaporating. Show Answer Correct Answer: D) Evaporating. 17. A process by which water vapor changes into a liquid on a surface. A) Concentration. B) Saturation. C) Condensation. D) None of the above. Show Answer Correct Answer: C) Condensation. 18. Which statements below is INCORRECT about liquids and gases? A) Liquids possess greater kinetic energy than gases. B) Gases have weak molecular force of attraction while liquids have a moderate force of attraction. C) Liquids have a definite size where gases can expand to fill any closed container. D) Gases are easily compressed where liquids are not. Show Answer Correct Answer: A) Liquids possess greater kinetic energy than gases. 19. What is the molarity of a solution made from 325.4g of AlCl$_{3}$ with enough water to make 500.0 mL? A) 4.88 M. B) 4.88 g. C) 2.440 M. D) 2.44 M. Show Answer Correct Answer: A) 4.88 M. 20. If your final answer is 10 = 4 A) No Solution. B) Infinite Many Solutions. C) One Solution. D) More steps to reach final step. Show Answer Correct Answer: A) No Solution. 21. When sand and water are combined, they create a A) Solution. B) Mixture. C) Solvent. D) All of these. Show Answer Correct Answer: B) Mixture. 22. A solution having higher osmotic pressure is called ..... solution. A) Isotonic. B) Hypotonic. C) Hypertonic. D) None of the above. Show Answer Correct Answer: C) Hypertonic. 23. All of the following are solutions EXCEPT ..... A) Salt and water. B) Sugar and water. C) Water and oil. D) Lemon juice and water. Show Answer Correct Answer: C) Water and oil. 24. The process by which a liquid changes into a ..... is called evaporation. A) Solid. B) Gas. C) All the above. D) None of the above. Show Answer Correct Answer: B) Gas. 25. The teacher futilely asked the students to be quiet as she reviewed. The students simply would not listen. Which of the following is a synonym for futilely? A) Carefully. B) Unsuccessfully. C) Patiently. D) Forcefully. Show Answer Correct Answer: B) Unsuccessfully. 26. Considering the formation, breaking and strength of hydrogen bond, predict which of the following mixtures will show a positive deviation from Raoult's law? A) Methanol and acetone. B) Chloroform and acetone. C) Nitric acid and water. D) Phenol and aniline. Show Answer Correct Answer: A) Methanol and acetone. 27. A solution of HCl has a [H$^{+}$] = 7.2 x 10$^{-9}$. Is this and acid or a base? (Hint:Calculate pH first to determine.) A) Acid. B) Base. C) All the above. D) None of the above. Show Answer Correct Answer: B) Base. 28. How many solutions does the following equation have?-2x + 9 + 6x =-3x + 2 A) Two solutions. B) One Solution. C) Infinitely Many Solutions. D) No Solutions. Show Answer Correct Answer: B) One Solution. 29. Justin found that a linear equation with one variable (the variable x) can be transformed into an equivalent equation.-11x =-11Determine if the equation has:one solution, no solutions, or infinitely many solutions. A) Infinitely Many Solutions. B) One Solution. C) No Solution. D) None of the above. Show Answer Correct Answer: B) One Solution. 30. Which of the following methods will increase the solubility of a gas in a liquid? A) Increasing the pressure. B) Decreasing the temperature. C) Decreasing the pressure. D) Increasing the temperature. Show Answer Correct Answer: A) Increasing the pressure. 31. When x = 5 in the equationx + 7 = 15(5) + 7 = 1512 = 15TRUE OR FALSE? A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 32. The molality of pure water is A) 55.5. B) 60.5. C) 18. D) 50.5. Show Answer Correct Answer: A) 55.5. 33. The boiling point of a liquid solution is A) Higher than the boiling point of the solvent. B) The same as the boiling point of the solvent. C) Lower than the boiling point of the solvent. D) The same as the boiling point of the solute. Show Answer Correct Answer: A) Higher than the boiling point of the solvent. 34. These statements are about the particle model of matter. Which one is not correct? A) Liquids are hard to compress because their particles are very close together. B) Gases expand to fill their container because there are only weak forces between the particles. C) Liquids can flow because there are only very weak forces between the particles. D) Solids have a fixed shape because there are very strong forces between the particles. Show Answer Correct Answer: A) Liquids are hard to compress because their particles are very close together. 35. Which of the following will speed up the dissolving of a solid solute in water? A) Freezing the solute. B) Raise the temperature of the solution. C) Nothing would speed up the dissolving. D) Freeze the solvent. Show Answer Correct Answer: B) Raise the temperature of the solution. 36. Why will sugar dissolve in water? A) Sugar is an ionic substance. B) Sugar has similar energy to water. C) Sugar is a polar covalent substance. D) Sugar will not dissolve in water. Show Answer Correct Answer: C) Sugar is a polar covalent substance. 37. How do you find the volume of an irregular shaped solid? A) Using a balance. B) Multiplying the length by its sides. C) Weighing it. D) Water displacement. Show Answer Correct Answer: D) Water displacement. 38. What would be the mass of 1.5mol H$_{2}$O? A) 20 g. B) 32 g. C) 40 g. D) 27 g. Show Answer Correct Answer: D) 27 g. 39. How are filters and sieves similar? A) They can both create mixtures. B) They both are used to separate substances in a mixture. C) They can both separate a solution. D) They do not have any similarities. Show Answer Correct Answer: B) They both are used to separate substances in a mixture. 40. The relative lowering of vapour pressure is equalto the ratio between the number of A) Solute molecules to the solvent molecules. B) Solute molecules to the total molecules in the solution. C) Solvent molecules to the total number of ions ofthe solute. D) Solvent molecules to the total molecules in the solution. Show Answer Correct Answer: B) Solute molecules to the total molecules in the solution. 41. Increasing pressure makes gases ..... soluble in a solvent. A) More. B) Less. C) Just as (no change). D) None of the above. Show Answer Correct Answer: A) More. 42. A small amount of NaCl is dissolved in water to make a solution. In this solution A) NaCl is the solvent. B) Water is the solute. C) Water is the precipitate. D) NaCl is the solute. Show Answer Correct Answer: D) NaCl is the solute. 43. Process of uniform disstribution of solute is called A) Binary solution. B) Monosolution. C) Disolution. D) Ternarysolution. Show Answer Correct Answer: C) Disolution. 44. Which of the following alloys is a mixture of a metal and a non-metal? A) Iron. B) Steel. C) Brass. D) Bronze. Show Answer Correct Answer: B) Steel. 45. What mass of NaCl is needed to prepare 850 mls of 6.0 M NaCl solution? A) 298 grams. B) 87 grams. C) 0.087 grams. D) 5.1 grams. Show Answer Correct Answer: A) 298 grams. 46. Which of the following statements is true about ideal solutions? A) They obey Raoult's law over the entire range of concentration. B) They show positive deviation from Raoult's law. C) They show negative deviation from Raoult's law. D) They do not follow Henry's law. Show Answer Correct Answer: A) They obey Raoult's law over the entire range of concentration. 47. A LIQUID mixture where one substance is blended evenly throughout another substance A) Solution. B) Concentration. C) Solubility. D) Solvent. Show Answer Correct Answer: A) Solution. 48. If an object sinks in a fluid, ..... A) The density of the fluid is equal to the density of the object. B) The density of the fluid is less than the density of the object. C) Density has nothing to do with whether an object sinks or floats, only which state of matter the object is. D) The density of the fluid is greater than the density of the object. Show Answer Correct Answer: B) The density of the fluid is less than the density of the object. 49. Water molecules are attracted to each other because A) They are all positively charged. B) Each water molecule has the same number of protons as electrons. C) The positive area of one water molecule is attracted to the negative area of another. D) All water molecules are neutral. Show Answer Correct Answer: C) The positive area of one water molecule is attracted to the negative area of another. 50. Electrons always flow from A) Cathode to anode. B) Anode to cathode. C) All the above. D) None of the above. Show Answer Correct Answer: B) Anode to cathode. 51. Which of the following refers to the maximum amount of solute that can dissolve in a given amount of solvent at a certain temperature? A) Solubility. B) Unsaturated solution. C) Saturated solution. D) Dilute solution. Show Answer Correct Answer: C) Saturated solution. 52. The Tyndall effect is used to distinguish between A) Gases and solids. B) Solutions and colloids. C) Solvent and suspensions. D) All of these. Show Answer Correct Answer: B) Solutions and colloids. 53. If a pure substance cannot be chemically separated, that is a ..... A) An element. B) A molecule. C) A compound. D) A mixture. Show Answer Correct Answer: A) An element. 54. SUSPENSION MIXTURES ARE HETEROGENEOUS MIXTURES! A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 55. How many moles of NaCl are present in a solution with a molar concentration of of 8.59Mol/L and 125 mL of solution? A) 62.7 mol. B) 1.07 mol. C) 62.7 grams. D) 1.07 gram. Show Answer Correct Answer: B) 1.07 mol. 56. $6\left(m+3\right)=2\left(m+5\right)$ A) No solution. B) One Solution. C) Infinite Solutions. D) None of the above. Show Answer Correct Answer: B) One Solution. 57. Solve.3y + 6 + 4y-7 =-8 A) Y=-8. B) Y=1. C) No solution. D) Y=-1. Show Answer Correct Answer: D) Y=-1. 58. Which of the following would be classified as an electrolyte in aqueous solution? A) Na$_{2}$CO$_{3}$. B) H$_{2}$SO$_{4}$. C) HF. D) All of these. Show Answer Correct Answer: D) All of these. 59. The number of moles of solute or solvent in a solution divided by the total number of moles of solute and solvent is known as A) Mole fraction. B) Molality. C) Percent by mass. D) Molarity. Show Answer Correct Answer: A) Mole fraction. 60. How many moles of solute are present in 3.5L of a 3.0M solution of CuCl$_{2}$? A) 10.5g. B) 10.5 mol. C) 10.5M. D) None of the above. Show Answer Correct Answer: B) 10.5 mol. ← PreviousNext →Related QuizzesScience QuizzesClass 12 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 8Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books