This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Chemistry Part I > Class 12 Chemistry (Part I) Chapter 2 Solutions – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 10 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The substance that is dissolving a solute. A) Solution. B) Solvation. C) Suspension. D) Solvent. Show Answer Correct Answer: D) Solvent. 2. Which describes an ionic compound dissolving in water? A) The compound dissociates into its negative and positive ions. B) Partial negative and positive charges are attracted to opposite sides of water molecules. C) Ions of opposite charge neutralize each other to form neutral molecules. D) Ionic bonds form to create formula units. Show Answer Correct Answer: A) The compound dissociates into its negative and positive ions. 3. How many solutions does this equation have?a = 7 A) One Solution. B) No Solution. C) Many Solutions. D) None of the above. Show Answer Correct Answer: A) One Solution. 4. A student combines salt crystals and water. What happens to the salt when added to water? A) The combined physically to form a special mixture. B) The salt and water evaporated. C) The salt and water separated, forming layers. D) The salt melted the water. Show Answer Correct Answer: A) The combined physically to form a special mixture. 5. When materials combine to form a mixture, they A) Always change their physical state. B) React to form a new substance with new properties. C) Keep their original properties. D) Combine in a specific ratio. Show Answer Correct Answer: C) Keep their original properties. 6. The moles of solute can be determined by multiplying the molarity of the solute by the volume of solvent. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. In a ..... , one substance is dissolved in another substance. A) Solution. B) Suspension. C) Colloid. D) None of the above. Show Answer Correct Answer: A) Solution. 8. ..... is the ability of an object to float or sink in water A) Relative Density. B) Solubility. C) Magnetism. D) Mass. Show Answer Correct Answer: A) Relative Density. 9. Which one of the following aqueous solutions will exihibit highest boiling point? A) 0.01 M KNO$_{3}$. B) 0.01 M Na$_{2}$ SO$_{4}$. C) 0.015 M urea. D) 0.015 M glucose. Show Answer Correct Answer: B) 0.01 M Na$_{2}$ SO$_{4}$. 10. Ionic compounds produce ions in solution by A) Evaporation. B) Dispersion. C) Dissociation. D) Ionization. Show Answer Correct Answer: C) Dissociation. 11. To increase the solubility of a gaseous solute ..... A) Decrease both the pressure and temperature. B) Decrease the temperature, increase the pressure. C) Increase the temperature, decrease the pressure. D) Increase both the temperature and pressure. Show Answer Correct Answer: B) Decrease the temperature, increase the pressure. 12. How many solutions does the following equation have?3x-3 =-3 + 3x A) One Solution. B) No Solutions. C) Infinitely Many Solutions. D) None of the above. Show Answer Correct Answer: C) Infinitely Many Solutions. 13. When any matter is heated its particle ..... A) Start moving faster. B) Slow down. C) All the above. D) None of the above. Show Answer Correct Answer: A) Start moving faster. 14. Simone was helping her father repair their shed outside. By mistake, she dropped an open box of nails on a pile of dirt. The best way for Simone to separate the nails from the dirt without using her hands was by- A) Adding glue. B) Adding water. C) Using a magnet. D) Using a shovel. Show Answer Correct Answer: C) Using a magnet. 15. The solubility of a gas in a liquid ..... when the temperature of the solution increase A) Decrease. B) Increase. C) All the above. D) None of the above. Show Answer Correct Answer: A) Decrease. 16. How is Henry's Constant dependent on temperature? A) Directly proportional. B) Inversely proportional. C) Varies exponentially. D) None of the above. Show Answer Correct Answer: A) Directly proportional. 17. Based on the selection, the reader may best infer that new building materials ..... A) Reflect a desire to conserve energy. B) Require considerable patience to install. C) Are sturdy enough to use on any building project. D) Are responsible for yielding more attractive buildings. Show Answer Correct Answer: A) Reflect a desire to conserve energy. 18. When an ionic compound 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: B) Ions. 19. The substance that does the dissolving is known as the ..... A) Solvent. B) Insoluble. C) Solute. D) Soluble. Show Answer Correct Answer: A) Solvent. 20. According to paragraph 7, in the future, sports fans will ..... A) Expect their team to win. B) Help to plan stadiums. C) Demand greater luxury. D) Pay higher ticket prices. Show Answer Correct Answer: D) Pay higher ticket prices. 21. In order to dilute a solution, you need to A) Add more water. B) Find the volume. C) Add more of the solid. D) Find the mass. Show Answer Correct Answer: A) Add more water. 22. The solutions of the quadratic equationx$^{2}$+2x-15=0 are (hint:find the zeros) FACTOR A) X = 5 or x =-3. B) X =-3 or x =-5. C) X = 3 or x = 5. D) X =-5 or x = 3. Show Answer Correct Answer: D) X =-5 or x = 3. 23. What does it mean when an equation has infinitely many solutions? A) "To infinity and beyond". B) The equation is always TRUE when any value is substituted in for the variable. C) The equation will NEVER be true when any value is substituted in for the variable. D) Only ONE solution will make the equation true. Show Answer Correct Answer: B) The equation is always TRUE when any value is substituted in for the variable. 24. Percentage by mass of solute present in solution A) Volume percentage. B) Weight percentage. C) Mass percentage. D) Height percentage. Show Answer Correct Answer: C) Mass percentage. 25. The separate parts of a mixture A) Mixture. B) Ingredients. C) Physical change. D) Solvent. Show Answer Correct Answer: B) Ingredients. 26. One of the factors affecting the amount of solute that dissolves in a solvent A) Coolness and gravity. B) Temperature and pressure. C) Freezing and fusion. D) None of the above. Show Answer Correct Answer: B) Temperature and pressure. 27. The value of Henry's Constant is A) Greater for gases with higher solubility. B) Greater for gases with lower solubility. C) Constant for all gases. D) None of the above. Show Answer Correct Answer: B) Greater for gases with lower solubility. 28. Amount of solute that can dissolve in a given amount of solvent at a given temperature is? A) Pure substance. B) Solubility. C) Saturated solution. D) Colloid. Show Answer Correct Answer: B) Solubility. 29. A light bulb connected to two electrodes is immersed in the following solutions. Which one will make the light bulb light up the brightest? A) 1 g of sugar in 1 cup of water. B) 10 g of sugar in 1 cup of water. C) 10 g of salt in 1 cup of water. D) 1 g of salt in 1 cup of water. Show Answer Correct Answer: C) 10 g of salt in 1 cup of water. 30. Oil molecules are nonpolar. What kind of solvent is required to remove an oil stain? A) Unsaturated. B) Saturated. C) Polar. D) Nonpolar. Show Answer Correct Answer: D) Nonpolar. 31. A solution of sucrose (molar mass = 342 g mol-1) has been prepared by dissolving 68.5 g of sucrose in 1000 g of water. The freezing point of the solution obtained will be (Kf for water = 1.86 K kg mol-1). A) -0.570$^\circ$C. B) + 0.372$^\circ$C. C) -0.520$^\circ$C. D) -0.372$^\circ$C. Show Answer Correct Answer: D) -0.372$^\circ$C. 32. What is the unit for molarity? A) Liters. B) Moles. C) Mass/liters. D) Moles/liter. Show Answer Correct Answer: D) Moles/liter. 33. What is dissolved in a solution? A) Solvent. B) Saturation. C) Solute. D) Soluble. Show Answer Correct Answer: C) Solute. 34. The substance that does the dissolving in a solution is called a(n) A) Solute. B) Acid. C) Base. D) Solvent. Show Answer Correct Answer: D) Solvent. 35. What the matter will be dissolved in, like water A) Separate. B) Solvent. C) Measure. D) Combine. Show Answer Correct Answer: B) Solvent. 36. When a solvent can no longer hold any more solute A) Saturation. B) Dilute. C) Dissolve. D) None of the above. Show Answer Correct Answer: A) Saturation. 37. The formula M$_{1}$V$_{1 }$= M$_{2}$V$_{2}$ is used when: A) Reacting an acid with a base. B) Diluting a solution. C) Dissolving a solute in a solvent. D) Determining the pH of an acid. Show Answer Correct Answer: B) Diluting a solution. 38. The hero swoops in to save the girl tied to the tracks right before the train hits her. This is an example of what plot element? A) Main conflict. B) Climax. C) Falling action. D) Resolution. Show Answer Correct Answer: B) Climax. 39. How many solutions does this equation have?4y + 5 = 4y-7 A) One Solution. B) No Solution. C) Many Solutions. D) None of the above. Show Answer Correct Answer: B) No Solution. 40. Solve:4x + 1 = 8x-3 A) No solutions. B) X = 1. C) X = 2. D) Infinitely many solutions. Show Answer Correct Answer: B) X = 1. 41. Molarity is measured in A) Moles per L. B) Moles per kJ. C) Moles per kg. D) Moles per mL. Show Answer Correct Answer: A) Moles per L. 42. Which of the following is the universalsolvent? A) Acetone. B) Alcohol. C) Benzene. D) Water. Show Answer Correct Answer: D) Water. 43. Calculate the number of moles copper (II) sulfate in 320g of CuSO$_{4.}$ A) 4. B) 2. C) 6. D) 8. Show Answer Correct Answer: B) 2. 44. How many solutions does this equation have? $2x+1=2x+1$ A) Always. B) Sometimes. C) Never. D) None of the above. Show Answer Correct Answer: A) Always. 45. Based on the equations for each line, determine how many solutions the system would have.y=5x+3y=5x-2 A) Infinite Number of Solutions. B) No Solution. C) One Solution. D) None of the above. Show Answer Correct Answer: B) No Solution. 46. Which is the correct complete ionic equation for the reaction of K2CO3(aq) with ZnCl2(aq) to form ZnCO3(s) and KCl(aq)? A) K+(aq) + CO32-(aq) + Zn2+(aq) + Cl-(aq) $\rightarrow$K+(aq) + Cl-(aq) + ZnCO3(s). B) K2CO3(aq) + ZnCl2(aq) $\rightarrow$ ZnCO3(s) + 2KCl(aq). C) Zn2+(aq) + CO32-(aq) $\rightarrow$ ZnCO3(s). D) 2K+(aq) + CO32-(aq) + Zn2+(aq) + 2Cl-(aq) $\rightarrow$2K+(aq) + 2Cl-(aq) + ZnCO3(s). Show Answer Correct Answer: D) 2K+(aq) + CO32-(aq) + Zn2+(aq) + 2Cl-(aq) $\rightarrow$2K+(aq) + 2Cl-(aq) + ZnCO3(s). 47. Water and Kool-Aid are mixed together. Hot water, coffee and sugar are mixed together. Which substance is the solvent in both? A) Water. B) Coffee. C) Sugar. D) Kool-aid. Show Answer Correct Answer: A) Water. 48. How does air pressure change as you go from the top of a mountain to sea level? A) Pressure decreases. B) Pressure stays the same. C) It depends of the weather. D) Pressure increases. Show Answer Correct Answer: D) Pressure increases. 49. When one substance dissolves evenly in another its known as a ..... A) Solution. B) Mixture. C) All the above. D) None of the above. Show Answer Correct Answer: A) Solution. 50. LIQUIDS CHANGE INTO SOLIDS A) FREEZING. B) MELTING. C) EVAPORATION. D) CONDENSATION. Show Answer Correct Answer: A) FREEZING. 51. Solutions are a type of mixture. What makes solutions different from other mixtures is ..... A) The elements in a solution react to compounds. B) One substance dissolves in the other. C) Two or more substances are combined. D) None of the above. Show Answer Correct Answer: B) One substance dissolves in the other. 52. If there is more than the maximum amount of solute particles in a solution, it is said to be A) Supersaturated. B) Saturated. C) Concentrated. D) Unsaturated. Show Answer Correct Answer: A) Supersaturated. 53. How can you decrease the concentration of a solution? A) Pour out some of the solution. B) Add solvent. C) You cannot decrease the concentration. D) Add solute. Show Answer Correct Answer: B) Add solvent. 54. What is something that can be dissolved in a solution called? A) Insoluble. B) Suspension. C) Colloid. D) Soluble. Show Answer Correct Answer: D) Soluble. 55. Which is a colligative property? A) Vapour pressure. B) Freezing point. C) Osmotic pressure. D) Boiling point. Show Answer Correct Answer: C) Osmotic pressure. 56. ..... means to combine together. A) Distribute. B) Stir. C) Mix. D) Solute. Show Answer Correct Answer: C) Mix. 57. Which molecule contains bonds of GREATER polarity? A) H2O. B) OF2. C) All the above. D) None of the above. Show Answer Correct Answer: A) H2O. 58. The substance dissolve in a solution is A) Solution. B) Solute. C) Concentration. D) Solvent. Show Answer Correct Answer: B) Solute. 59. ..... is used as drying agent A) Deliquescene. B) Hydroscopic. C) Hydro meter. D) Barometer. Show Answer Correct Answer: B) Hydroscopic. 60. Kevin got sick and went to the doctor. The red part of the sentence is the A) Problem. B) Solution. C) All the above. D) None of the above. Show Answer Correct Answer: B) Solution. ← 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