This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 2 Acids, Bases And Salts – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 3 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Hydrogen chloride gas turns the blue litmus red. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 2. We should never add water to acid because: A) The reaction is endothermic. B) The reaction is slow. C) The reaction is exothermic. D) The reaction doesn't take place. Show Answer Correct Answer: C) The reaction is exothermic. 3. CuO + (X) ..... > CuSO$_{4}$ + H$_{2}$O. Here (X) is- A) CuSO $ _ {4} $. B) H$_{2}$SO$_{4}$. C) HCl. D) HNO$_{3}$. Show Answer Correct Answer: B) H$_{2}$SO$_{4}$. 4. What is the range of pH values in a basic solution? A) 0-6. B) 8-14. C) 7. D) 0-14. Show Answer Correct Answer: B) 8-14. 5. What is a titration? A) When the moles of hydrogen ions is equal to the moles of hydroxide ions. B) Adding a known amount of solution of known concentration to determine the concentration of an unknown. C) Reaction in which an acid and a base react in an aqueous solution to produce a salt and water. D) The extent of ionization of an acid or base. Show Answer Correct Answer: B) Adding a known amount of solution of known concentration to determine the concentration of an unknown. 6. The formula of Epsom salt is A) MgCO3. B) Mg(OH)2. C) MgSO4. D) MgCl2. Show Answer Correct Answer: C) MgSO4. 7. The oxidation number of N in NH$_{3}$ is x The oxidation number of Cr in K$_{2}$Cr$_{2}$O$_{7}$ is y; Then x + y =? A) 3. B) 6. C) 5. D) 9. Show Answer Correct Answer: A) 3. 8. Which of the following is acidic in nature? A) Lime Juice. B) Human blood. C) Lime water. D) Antacid. Show Answer Correct Answer: A) Lime Juice. 9. Ca(OH)2 is caustic lime and is a(n) ..... A) Acid or base. B) Buffer. C) Acid. D) Base. Show Answer Correct Answer: D) Base. 10. Which indicator is colourless in acid and pink in alkali? A) Litmus. B) Phenolphthalein. C) Universal Indicator. D) Methyl Orange. Show Answer Correct Answer: B) Phenolphthalein. 11. Acidic solutions exhibit a higher ratio of H$_{3}$O$^{+}$ ions, known as ..... A) Neutrons. B) Hydroxide. C) Electrons. D) Hydronium. Show Answer Correct Answer: D) Hydronium. 12. Nitric acid is considered to be a: A) Oxyacid. B) Hydag. C) Weak acid. D) Strong alkali. Show Answer Correct Answer: A) Oxyacid. 13. The colour of neutral litmus solution is A) Red. B) Blue. C) Purple. D) Yellow. Show Answer Correct Answer: C) Purple. 14. Lime water reacts with chlorine to give A) Bleaching powder. B) Baking powder. C) Baking soda. D) Washing soda. Show Answer Correct Answer: A) Bleaching powder. 15. Pickles form by soaking in an acid. What are some properties of pickles A) Conducts electricity, bitter, turns litmus blue. B) Slippery, sour, turns litmus blue. C) Slippery, bitter, turns litmus blue. D) Sour, turns litmus red, can conduct electricity. Show Answer Correct Answer: D) Sour, turns litmus red, can conduct electricity. 16. A substance has a pH value of 8. It is most likely to be what? A) Strong acid. B) Weak acid. C) Strong base. D) Weak base. Show Answer Correct Answer: D) Weak base. 17. An example of an acidic oxide is: A) MgO. B) CO$_{2}$. C) BaO. D) $ _ {2} $ of. Show Answer Correct Answer: B) CO$_{2}$. 18. When you make a dilution, which of these values remains constant? A) The molarity (M). B) The total moles of solute. C) The volume (V). D) The concentration. Show Answer Correct Answer: B) The total moles of solute. 19. Why are bases useful as cleaning products? A) They dissolve fats and oils. B) They are corrosive, so they eat anything. C) They don't mix with water. D) Since bases are slippery, they slip dirt off of surfaces. Show Answer Correct Answer: A) They dissolve fats and oils. 20. When you neutralize acid with a base you create A) A Salt and water. B) You can not neutralize acid with a base. C) You create carbon dioxide. D) A moderate sized explosion. Show Answer Correct Answer: A) A Salt and water. 21. Which one of the following is acidic? A) Lemon juice. B) Tomatoes. C) Milk. D) All. Show Answer Correct Answer: D) All. 22. How many mL of 1.0M KBr solution would you need to prepare 250 mL of a 0.2M dilution? A) 175 mL. B) 250 mL. C) 50 mL. D) 5 mL. Show Answer Correct Answer: C) 50 mL. 23. Which of the following types of medicines is used for treating indigestion? A) Antibiotic. B) Analgesic. C) Antacid. D) Antiseptic. Show Answer Correct Answer: C) Antacid. 24. Plaster of Paris hardens by- A) Giving of CO$_{2}$. B) Combining with water. C) Changing into CaCO$_{3}$. D) Giving out water. Show Answer Correct Answer: B) Combining with water. 25. An extremely strong acid would have a pH of ..... A) 1. B) 7. C) 9. D) 14. Show Answer Correct Answer: A) 1. ← PreviousNext →Related QuizzesClass 10 Science Chapter 2 Acids, Bases And Salts Quiz 1Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 2Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 4Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 5Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 6Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 7Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 8Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 9Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 10Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books