This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 2 Solutions – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In a solution of cholate powder and milk, what do we call to the MILK that dissolved the chocolate powder? A) Solute. B) Solvent. C) Mixture. D) None of the above. Show Answer Correct Answer: B) Solvent. 2. Why does a hot air balloon float in air? A) Air is less dense than water. B) The density of hot air is less than the density of cold air. C) Air is denser on cold days. D) The overall density of the balloon and its basket is less than the density of the air. Show Answer Correct Answer: D) The overall density of the balloon and its basket is less than the density of the air. 3. 3c + 1 = 1 + 3c A) One. B) None. C) Infinite. D) None of the above. Show Answer Correct Answer: C) Infinite. 4. When water is added to a solution it is called a ..... A) Dilution. B) Concentration. C) Heterogeneous solution. D) Dissociation. Show Answer Correct Answer: A) Dilution. 5. A solution contains 25 g of a nonelectrolyte and 80 g of water. The water boils at 104.7$^\circ$ C and K$_{b}$ = 0.512$^\circ$ C/m. What is the molar mass of the nononelectrolyte? A) 34g/mol. B) 11g/mol. C) 28g/mol. D) 46g/mol. Show Answer Correct Answer: A) 34g/mol. 6. Pure water can be obtained from sea water by A) Centrifugation. B) Plasmolysis. C) Reverse osmosis. D) Sedimentation. Show Answer Correct Answer: C) Reverse osmosis. 7. Most substances can dissolve in water. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 8. Some people add sugar to their hot tea. Which property of the sugar remains the same when the sugar is in the tea solution? (5.5C) A) The taste of the sugar. B) The size of the sugar crystals. C) The color of the sugar. D) The texture of the sugar. Show Answer Correct Answer: A) The taste of the sugar. 9. You know$^{}$$_{}$ that a substance has dissolved when it- A) Becomes a solid. B) Produces condensation and has water droplets. C) Spreads evenly throughout a liquid. D) None of the above. Show Answer Correct Answer: C) Spreads evenly throughout a liquid. 10. A beaker contains a mixture of salt, sand, gravel, and iron filings. Which substance is soluble in water? A) Sand. B) Iron filings. C) Salt. D) Gravel. Show Answer Correct Answer: C) Salt. 11. The material that dissolves in a solvent (salt) ..... A) Model. B) Reactant. C) Solute. D) None of the above. Show Answer Correct Answer: C) Solute. 12. Effect of temperature on solubility of gas in liquid A) Increases with decrease in temperature. B) Decreases with decrease in temperature. C) Remains constant. D) None of the above. Show Answer Correct Answer: A) Increases with decrease in temperature. 13. The smaller amount that is dissolved in a solution A) Solute. B) Solvent. C) Distillation. D) Alloy. Show Answer Correct Answer: A) Solute. 14. At room temperature, nitrogen, oxygen, and helium are examples of which type of matter? A) Gas. B) Liquid. C) Plasma. D) Solid. Show Answer Correct Answer: A) Gas. 15. A measure of volume A) Molarity. B) Grams. C) Moles. D) Liters. Show Answer Correct Answer: D) Liters. 16. ML of a solution is diluted to a final volume of 62.0 mL. The diluted solution has a concentration of 1.65 mol/L. What was the concentration of the original solution? A) 1.56 mol/L. B) 1.96 mol/L. C) 3.16 mol/L. D) 2.92 mol/L. Show Answer Correct Answer: D) 2.92 mol/L. 17. Maximum amount of a solid solute that can be dissolved in a specified amount of a given liquid solvent does not depend upon ..... A) (i) Temperature. B) (ii) Nature of solute. C) (iii) Pressure. D) (iv) Nature of solvent. Show Answer Correct Answer: C) (iii) Pressure. 18. What is the solution to the following equation?4y-3 =-5y-21 A) One solution, y=2. B) No solution. C) Infinitely many solutions. D) One solution, y=-2. Show Answer Correct Answer: D) One solution, y=-2. 19. Select the true statement for the reversible reactionH$_{2}$O + H$_{2}$O <$\rightarrow$ H$_{3}$O+ + OH$^{-}$ A) The product side is favored at 25 C. B) Kw = [H$_{3}$O+] [OH$^{-}$]/(H$_{2}$O)$^{2}$. C) Represents the autoionization of water. D) For distilled water at 25C, the [OH$^{-}$] = 1.0 x 10$^{7}$M. Show Answer Correct Answer: C) Represents the autoionization of water. 20. If an electrical current can run through a solution, it is said to contain A) Magic. B) Nonelectrolytes. C) Electricity. D) Electrolytes. Show Answer Correct Answer: D) Electrolytes. 21. Calculate the number of moles of atoms in 4.6 g of sodium. A) 0.1. B) 0.2. C) 0.3. D) 0.4. Show Answer Correct Answer: B) 0.2. 22. One or more substances dissolve in another and cannot be easily separated. A) Mixture. B) Solution. C) Dissolve. D) Solute. Show Answer Correct Answer: B) Solution. 23. How many solutions does this equation have?6x-3 = 6x + 9 A) One Solution. B) No Solution. C) Many Solutions. D) None of the above. Show Answer Correct Answer: B) No Solution. 24. What is the mole fraction of ethanol when 0.504 mol of ethanol are mixed with 4.06 mol of water? A) 0.110. B) 0.124. C) 0.097. D) None of the above. Show Answer Correct Answer: A) 0.110. 25. Lemonade-Water, lemon juice, and sugarIdentify the solute A) Water. B) Lemon juice. C) Sugar and lemon juice. D) None of the above. Show Answer Correct Answer: C) Sugar and lemon juice. ← 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 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 10Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books