This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Chemistry Part I > Class 12 Chemistry (Part I) Chapter 2 Solutions – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 14 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Assertion:When NaCl is added to water a depression in freezing point is observed. Reason:The lowering of vapour pressure of a solution causes depression in the freezing point. A) Both A & R are true and R is correct explanation of A. B) Both A & R are true but R is not correct explanation of A. C) A true, R false. D) A false, R true. Show Answer Correct Answer: A) Both A & R are true and R is correct explanation of A. 2. Students are classifying substances. Which of the following substances is a solution? A) Sand and water. B) Sugar and water. C) Spaghetti and meatballs. D) Soil and water. Show Answer Correct Answer: B) Sugar and water. 3. What is a solution called when a solution reaches a point where it cannot dissolve any additional solute? A) Solvable. B) Saturated. C) Satisfied. D) Dissolvable. Show Answer Correct Answer: B) Saturated. 4. Which solution is more concentrated? A) 20 g salt in 50 milliliters of water. B) 10 g salt in 50 milliliters of water. C) 40 g salt in 50 milliliters of water. D) 30 g salt in 50 milliliters of water. Show Answer Correct Answer: C) 40 g salt in 50 milliliters of water. 5. When my statement is always true A) There is no solution. B) There is one solution. C) There is an infinite number of solutions. D) None of the above. Show Answer Correct Answer: C) There is an infinite number of solutions. 6. A solution has 10 moles of ammonia in 2L of solution. What is the molarity? A) 5.0 M. B) 20 M. C) 0.2 M. D) 0.5 M. Show Answer Correct Answer: A) 5.0 M. 7. In a polar covalent bond, electrons are shared ..... A) Equally. B) Unequally. C) Between non-metals with similar electronegativities. D) Between a metal and a non-metal. Show Answer Correct Answer: B) Unequally. 8. What is the role of a solvent in a solution? A) To increase the pressure. B) To decrease the temperature. C) To act as a filter. D) To dissolve the solute. Show Answer Correct Answer: D) To dissolve the solute. 9. Patricia found that a linear equation with one variable (the variable x) can be transformed into an equivalent equation. 14x =-14Determine 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. 10. The number of moles of NaCl in 3 litres of 3M solution is A) 3. B) 9. C) 27. D) 1. Show Answer Correct Answer: B) 9. 11. Which will dissolve faster crushed table salt or crystal of table salt? A) Crushed table salt. B) Crystal of table salt. C) All the above. D) None of the above. Show Answer Correct Answer: A) Crushed table salt. 12. Carlos found that a linear equation with one variable (the variable x) can be transformed into an equivalent equation.-1x =-1xDetermine 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: A) Infinitely Many Solutions. 13. 5 grams of Solid L and 50 grams of Solid N were dissolved in the same amount of solvent (30 grams) at 30 $^\circ$C. What can you say to the type of solutions that can produce by both solids? A) Both solids are unsaturated. B) Solid L will create unsaturated solution while Solid N will create supersaturated solution. C) Solid L will create supersaturated solution while Solid N will create unsaturated solution. D) None of the above. Show Answer Correct Answer: B) Solid L will create unsaturated solution while Solid N will create supersaturated solution. 14. What is the definition of one solution? A) No matter what constant is substituted in for the variable, the equation is ALWAYS true. B) No matter what constant is substituted in for the variable, the equation will NEVER be true. C) Only this ONE solution will make the equation true. D) None of the above. Show Answer Correct Answer: C) Only this ONE solution will make the equation true. 15. A change in a state of matter ..... solid to liquid, liquid to gas, liquid to solid, or gas to liquid. A) Phase change. B) Dissolving. C) Chemical reaction. D) None of the above. Show Answer Correct Answer: A) Phase change. 16. When you have added as much solute as can dissolve in the solvent, the solution is called: A) Supersaturated. B) Unsaturated. C) Concentrated. D) Saturated. Show Answer Correct Answer: D) Saturated. 17. Solve the equation:3x-x + 4 = 4(2x +1) A) Infinite solutions. B) X = 6. C) X = 0. D) No solution. Show Answer Correct Answer: C) X = 0. 18. If the amount of solute present in a solution is more than the maximum than can be dissolved, the solution is A) Colloidal. B) Unsaturated. C) Supersaturated. D) Saturated. Show Answer Correct Answer: C) Supersaturated. 19. The students' hard work paved the way for their success on the SOL test. What type of figurative language is in this sentence? A) Metaphor. B) Simile. C) Personification. D) Hyperbole. Show Answer Correct Answer: C) Personification. 20. If Bromine bonds with Hydrogen, a ..... bond forms. A) Polar covalent. B) Nonpolar covalent. C) Metallic. D) Ionic. Show Answer Correct Answer: A) Polar covalent. 21. Which of the following concentration term is temperature dependent A) Molarity. B) Mole fraction. C) Molality. D) Mass %. Show Answer Correct Answer: A) Molarity. 22. When a polar covalent molecule dissolves in water, it breaks apart into its A) Individual elements. B) Ions. C) None of the above-it dissolves as an individual. D) None of the above. Show Answer Correct Answer: C) None of the above-it dissolves as an individual. 23. A combination of two or more substances where one substance dissolves into the other substance ..... A) Solute. B) Solvent. C) Solution. D) Mixture. Show Answer Correct Answer: C) Solution. 24. A powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster? A) Freeze the mixture. B) Add more powder to the liquid. C) Stirs the powder in the liquid. D) Store the mixture in a dark place. Show Answer Correct Answer: C) Stirs the powder in the liquid. 25. The details in paragraph 2 support the idea that Benjamin is- A) Patient and sincere. B) Curious and observant. C) Talented and studious. D) Respectful and obedient. Show Answer Correct Answer: B) Curious and observant. 26. The solution that can absorb an additional amount of solute is A) Saturated. B) Unsaturated. C) All the above. D) None of the above. Show Answer Correct Answer: B) Unsaturated. 27. Which of the following statements BEST describes a homogeneous solutions? A) It is usually liquid. B) It contains a solute and solvent. C) It can be dilute or concentrated. D) Its components are distributed evenly in the solution. Show Answer Correct Answer: D) Its components are distributed evenly in the solution. 28. This tool allows liquids to pass through it, while very small particles are left behind. A) Filter. B) Evaporation dish. C) Funnel. D) Screen. Show Answer Correct Answer: A) Filter. 29. Calculate the number of moles of carbon dioxide contained in 11g of CO$_{2.}$ A) 0.25. B) 11. C) 0.5. D) 44. Show Answer Correct Answer: A) 0.25. 30. What happens to the concentration and conductivity, when you increase the amount of solute in a solution? A) The concentration increases and conductivity increases. B) The concentration increases and the conductivity decreases. C) The concentration decreases and the conductivity decreases. D) The concentration decreases and the conductivity increases. Show Answer Correct Answer: A) The concentration increases and conductivity increases. 31. John made a solution by adding 25 g of blue food colouring to 1000 mL of water. What is the percent concentration of the red food colouring in this solution? A) 0.25. B) 2.5. C) 0.0025. D) 0.025. Show Answer Correct Answer: B) 2.5. 32. What is the molality of a solution made by dissolving 2 moles of NaOH in 400 grams of water? A) 4 mol/kg solvent. B) 3 mol/kg. solvent. C) 2.5 moles /kg solvent. D) 5 mol/kg. solvent. Show Answer Correct Answer: D) 5 mol/kg. solvent. 33. How many grams of AgNO$_{3}$ are needed to prepare 0.125M solution in 250 mL of water? (the molar mass is 169.87g=1 mole) A) 84.9g. B) .03g. C) 5.3g. D) 0.5g. Show Answer Correct Answer: C) 5.3g. 34. How many grams are there in 1.6 moles of CaO? (rounded) A) 56. B) 35. C) 90. D) 0.286. Show Answer Correct Answer: C) 90. 35. BLOOD CELLS RETAIN THEIR NORMAL SHAPE IN SOLUTIONS WHICH ARE A) Hypertonic to blood. B) Hypotonic to blood. C) Isotonic to blood. D) Equinormal to blood. Show Answer Correct Answer: C) Isotonic to blood. 36. What is the substance called that is being dissolved in a solution? A) Mixture. B) Solute. C) Concentrator. D) Solvent. Show Answer Correct Answer: B) Solute. 37. A substance that dissolves in solution and produces ions is: A) Electrolyte. B) Non-electrolyte. C) A solvent. D) None of the above. Show Answer Correct Answer: A) Electrolyte. 38. How would you describe the way molecules move when the molecules are solid? A) The molecules are not moving. B) The molecules are moving away from each other. C) The molecules are moving around each other. D) The molecules are moving in place. Show Answer Correct Answer: D) The molecules are moving in place. 39. Which solution is concentrated? A) 10 g of salt in 400 ml of water. B) 25 g of salt in 100 ml of water. C) 5 g of salt in 400 ml of water. D) 15 g of salt in 200 ml of water. Show Answer Correct Answer: B) 25 g of salt in 100 ml of water. 40. What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH) A) 3.0M. B) 6.0M. C) 1.5M. D) 0.8 M. Show Answer Correct Answer: A) 3.0M. 41. Water is polar, this means: A) Both the H and O are negative. B) The O is slightly negative and the H's are slightly positive. C) Water will dissolve oil. D) Hydrogen is slightly negative. Show Answer Correct Answer: B) The O is slightly negative and the H's are slightly positive. 42. Cone. H$_{2}$SO$_{4}$ is 98 % by mass has d = 1.84 g cm$^{-3}$ Volume of acid required to make one litre of 0.1 M H$_{2}$SO$_{4}$ IS A) 20 ml. B) 30 ml. C) 10 ml. D) 5.43 mL. Show Answer Correct Answer: D) 5.43 mL. 43. In a solution of saltwater, what is the solute? A) Water. B) Ice. C) Salt. D) The glass. Show Answer Correct Answer: C) Salt. 44. K$_{H}$ value for Ar(g), CO$_{2}$(g), HCHO(g) and CH$_{4}$(g) are 40.39, 1.67, 1.83 x 10$^{-5 }$and 0.413 respectively. Arrange these gases in the order of their increasing solubility. A) HCHO < CH$_{4 }$< CO$_{2}$ < Ar. B) Ar < CH$_{4 }$< CO$_{2 }$< HCHO. C) Ar < CO$_{2}$ < CH$_{4}$ < HCHO. D) HCHO < CO$_{2}$ < CH$_{4}$ < Ar. Show Answer Correct Answer: C) Ar < CO$_{2}$ < CH$_{4}$ < HCHO. 45. How does temperature generally affect the solubility of solid solutes in water? A) Decreases solubility. B) Increases solubility. C) Has no effect. D) First increases then decreases. Show Answer Correct Answer: B) Increases solubility. 46. Solutions that conduct a current are called ..... and are made from ..... compounds. A) Electrolytes; ionic. B) Nonelectrolytes; ionic. C) Electrolytes; molecular. D) Electrolytes; covalent. Show Answer Correct Answer: A) Electrolytes; ionic. 47. What is a "homogeneous mixture of two or more substances in a single phase" ? A) Solute. B) Compound. C) Solvent. D) Solution. Show Answer Correct Answer: D) Solution. 48. What is the molarity of a solution made by adding 1.565 moles of Pb(NO$_{3}$ )$_{2}$ to enough water to make 500. mL of soution? A) 300. M. B) 1.56 M. C) 3.13 M. D) 31.3 M. Show Answer Correct Answer: C) 3.13 M. 49. Metallic alloys are from solutions A) Solid. B) Liquid. C) Gas. D) Non of the above. Show Answer Correct Answer: A) Solid. 50. How many solutions would this system of equations have?-5y-15=5y-10 A) No Solution. B) One Solution. C) Infinite Solutions. D) None of the above. Show Answer Correct Answer: B) One Solution. 51. The average school day for kindergarteners is getting longer, and it's paying off in improved reading skills. This improvement will continue from elementary school to HS. These children will be able to get better jobs when they are adults. What is the author's viewpoint about full day kindergarten? A) Favors full day. B) Not in favor of full day. C) All the above. D) None of the above. Show Answer Correct Answer: A) Favors full day. 52. How do you calculate the molarity of a solution? A) By tasting it. B) By adding the sum of the molecular weight of the elements in the substance. C) Dividing the moles of solute by the kg of solvent. D) Dividing the moles of solute by the L of solution. Show Answer Correct Answer: D) Dividing the moles of solute by the L of solution. 53. When pressure is increased at constanttemperature the solubility of gases in liquid ..... A) No change. B) No reaction. C) Increases. D) Decreases. Show Answer Correct Answer: C) Increases. 54. If molality of dilute solution is doubled, the value of molal depression constant (Kf) will be A) Halved. B) Tripled. C) Doubled. D) Unchanged. Show Answer Correct Answer: D) Unchanged. 55. The smaller the particle size(large surface area per unit volume) means ..... A) Decrease in solubility. B) Increase in rate of solubility. C) Decrease in rate of solubility. D) Increase in solubility. Show Answer Correct Answer: B) Increase in rate of solubility. 56. A solution with a low concentration is ..... A) Saturated. B) Dilute. C) Supersaturated. D) Concentrated. Show Answer Correct Answer: B) Dilute. 57. 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. 58. What is the process called when a solute dissolves in a solvent to form a solution? A) Dissolution. B) Condensation. C) Precipitation. D) Evaporation. Show Answer Correct Answer: A) Dissolution. 59. The substance to be dissolved in a liquid A) Solvent. B) Dissolve. C) Solute. D) Mixture. Show Answer Correct Answer: C) Solute. 60. 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) No solution. B) One solution. C) Two solutions. D) Infinitely many. Show Answer Correct Answer: D) Infinitely many. ← 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 7Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books