This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part I) Chapter 2 Solutions – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part I) Chapter 2 Solutions Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Factor completely.5x$^{2}$-7x + 2 A) 5(x-2)(x + 1). B) (5x-2)(x + 1). C) (7x-1)(x-4). D) (5x-2)(x-1). Show Answer Correct Answer: D) (5x-2)(x-1). 2. Which of the following aqueous solutions should have the highest boiling point? A) 1.0 M NaOH. B) 1.0 M Na2SO4. C) 1.0 M NH4NO3. D) 1.0 M KNO3. Show Answer Correct Answer: B) 1.0 M Na2SO4. 3. Which of the following does not dissolve in benzene A) Naphthalene. B) Anthracene. C) Glucose. D) All are correct. Show Answer Correct Answer: C) Glucose. 4. In comparison to a 0.01 M solution of glucose, the depression in freezing point of a 0.01 M MgCl2 solution is ..... A) The same. B) About twice. C) About three times. D) About six times. Show Answer Correct Answer: C) About three times. 5. Identify the non aqueous solution. A) Sodium chloride in water. B) Glucose in water. C) Copper sulphate in water. D) Sulphur in carbon-di-sulphide. Show Answer Correct Answer: D) Sulphur in carbon-di-sulphide. 6. Is water the only solvent that can dissolve solutes? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 7. Water and salt are mixed together. Hot water, coffee and sugar are mixed together. Which substance is the solvent in both? A) Sugar. B) Water. C) Coffee. D) Salt. Show Answer Correct Answer: B) Water. 8. Which of the following mixture that may produce buffer solution to work at pH of below 7? A) NaOH (in excess) + HCN. B) KOH + NaCH$_{3}$COO. C) KOH + HF (in excess). D) HCOOH + CH$_{3}$COOH. Show Answer Correct Answer: C) KOH + HF (in excess). 9. Choose the ideal solution from the following A) Carbon disulphide and acetone. B) Chloroform and acetone. C) Ethyl iodide and ethyl bromide. D) None of the above. Show Answer Correct Answer: C) Ethyl iodide and ethyl bromide. 10. Substances that don't dissolve are A) Melt-able. B) Insoluble. C) Dissolvable. D) Soluble. Show Answer Correct Answer: B) Insoluble. 11. When x = 13* in the equation61-m = 50 61-( ) = 50IS IT TRUE OR FALSE? A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 12. What is the missing information that would make the statement true for NO solution?3x + 5 = ..... x-5 A) 0. B) -5. C) 5. D) 3. Show Answer Correct Answer: D) 3. 13. A solute whose water solution conducts electricity is called a(n) A) Nonconductor. B) Electrolyte. C) Nonelectrolyte. D) Aqueous solution. Show Answer Correct Answer: B) Electrolyte. 14. The part of a solution that dissolves. A) Mixture. B) Solute. C) Solvent. D) Liquid. Show Answer Correct Answer: B) Solute. 15. A student pours mineral salts into a bottle of cold water. Which of the following best explains why shaking the bottle will affect the dissolving rate of the salt? A) Shaking exposes the salts to the solvent more quickly. B) Shaking helps more water evaporate. C) Shaking equalizes the water temperature. D) Shaking causes more ions to precipitate out of solution. Show Answer Correct Answer: A) Shaking exposes the salts to the solvent more quickly. 16. Which of these solutions has more solute than it can hold? A) Saturated. B) Suspension. C) Unsaturated. D) Supersaturated. Show Answer Correct Answer: D) Supersaturated. 17. How many solutions does this equation have? $2x+3=x-4$ A) Always. B) Sometimes. C) Never. D) None of the above. Show Answer Correct Answer: B) Sometimes. 18. What is the molar mass of H$_{2}$O? A) 6.02 x 10$^{23}$. B) 16 grams. C) 18 grams. D) 15.99999 grams. Show Answer Correct Answer: C) 18 grams. 19. If my work says 3x = 1, what is the value of x? A) One Solution x = 1. B) One Solution, x = 3. C) One Solution x = 1/3. D) No Solution. Show Answer Correct Answer: C) One Solution x = 1/3. 20. Which of the following substances would conduct electricity if dissolved in water to form a solution? A) C$_{6}$H$_{12}$O$_{6}$. B) CH$_{4}$. C) KI. D) CO$_{2}$. Show Answer Correct Answer: C) KI. 21. A solution that has more than the maximum amount of solute dissolved in the solvent is called ..... A) Saturated. B) Supersaturated. C) Unsaturated. D) Suspension. Show Answer Correct Answer: B) Supersaturated. 22. The molarity of pure water is A) 50M. B) 18M. C) 55.6M. D) 100M. Show Answer Correct Answer: C) 55.6M. 23. Colligative properties depend on the ..... of the solute but not the ..... of the solute. A) Concentration; identity. B) Identity; concentration. C) Reactivity; nature. D) Nature; reactivity. Show Answer Correct Answer: A) Concentration; identity. 24. Salt water is a A) Compound. B) Element. C) Heterogeneous mixture. D) Solution. Show Answer Correct Answer: D) Solution. 25. OIL+WATER is an example of- A) MISCIBLE LIQUIDS. B) IMMISCIBLE LIQUIDS. C) INSOLUBLE SUBSTANCES. D) None of the above. Show Answer Correct Answer: B) IMMISCIBLE LIQUIDS. ← 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