This quiz works best with JavaScript enabled. Home > Cbse > Class 10 > Science > Acids > Class 10 Science Chapter 2 Acids, Bases And Salts – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Lime water reacts with chlorine to give A) Baking soda. B) Washing soda. C) Baking powder. D) Bleaching powder. Show Answer Correct Answer: D) Bleaching powder. 2. Pickles form by soaking in an acid. What are some properties of pickles A) Slippery, sour, turns litmus blue. B) Sour, turns litmus red, can conduct electricity. C) Slippery, bitter, turns litmus blue. D) Conducts electricity, bitter, turns litmus blue. Show Answer Correct Answer: B) Sour, turns litmus red, can conduct electricity. 3. A substance has a pH value of 8. It is most likely to be what? A) Weak acid. B) Strong base. C) Strong acid. D) Weak base. Show Answer Correct Answer: D) Weak base. 4. An example of an acidic oxide is: A) MgO. B) BaO. C) $ _ {2} $ of. D) CO$_{2}$. Show Answer Correct Answer: D) CO$_{2}$. 5. When you make a dilution, which of these values remains constant? A) The concentration. B) The volume (V). C) The total moles of solute. D) The molarity (M). Show Answer Correct Answer: C) The total moles of solute. 6. 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. 7. 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. 8. Which one of the following is acidic? A) Lemon juice. B) Tomatoes. C) Milk. D) All. Show Answer Correct Answer: D) All. 9. How many mL of 1.0M KBr solution would you need to prepare 250 mL of a 0.2M dilution? A) 250 mL. B) 5 mL. C) 50 mL. D) 175 mL. Show Answer Correct Answer: C) 50 mL. 10. Which of the following types of medicines is used for treating indigestion? A) Analgesic. B) Antiseptic. C) Antibiotic. D) Antacid. Show Answer Correct Answer: D) Antacid. 11. Plaster of Paris hardens by- A) Combining with water. B) Giving out water. C) Giving of CO$_{2}$. D) Changing into CaCO$_{3}$. Show Answer Correct Answer: A) Combining with water. 12. An extremely strong acid would have a pH of ..... A) 9. B) 1. C) 14. D) 7. Show Answer Correct Answer: B) 1. 13. Which of the following is amphoteric in nature? A) Zinc Oxide. B) Aluminium Oxide. C) Beryllium Hydroxide. D) All of these. Show Answer Correct Answer: D) All of these. 14. All bases are alkalies but all alkalies are not bases? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 15. Which of the foll are present in dil aqueous soln of HCL A) H3O+ +CL-. B) UNIONISED HCL. C) H30+ +OH-. D) CL+ +OH-. Show Answer Correct Answer: A) H3O+ +CL-. 16. PH scale of a neutral solution is ..... A) 7. B) 3. C) 10. D) 5. Show Answer Correct Answer: A) 7. 17. A way to measure the concentration of hydrogen ions in a solution is to use a(n) ..... A) Litmus. B) Indicator. C) PH scale. D) Acid. Show Answer Correct Answer: C) PH scale. 18. Acids are substances that release H$^{+}$ ions when dissolved in water. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 19. If a few drops of concentrated acid accidentally spills over the hand of a student, what should be done A) Wash the hand with saline solution. B) Wash the hand immediately with plenty of water and apply a soln of sodium hydrogen carbonate. C) After washing apply soln of sodium hydroxide. D) Neutralise the acid wih a strong alkali. Show Answer Correct Answer: B) Wash the hand immediately with plenty of water and apply a soln of sodium hydrogen carbonate. 20. Which one of the following is required to identify the gas evolved when dilute hydrochloric acid reacts with sodium carbonate? A) A burning splinter. B) Lime water. C) Red litmus paper. D) Blue litmus paper. Show Answer Correct Answer: B) Lime water. 21. What does pH measure? A) How acidic a substance is. B) How basic a substance is. C) How acidic or basic substances are. D) How many hydronium ions and acid produces. Show Answer Correct Answer: C) How acidic or basic substances are. 22. What happens when a solution of an acid is mixed with a solution of a base in a test tube?a A) Temperature of the solution decreases. B) Temperature remains constant. C) Temperature of the solution increases. D) No reaction. Show Answer Correct Answer: C) Temperature of the solution increases. 23. Which type of acid is found in Ant sting? A) Oxalic Acid. B) Lactic Acid. C) Formic Acid. D) Acetic AcidTagsexcellent. Show Answer Correct Answer: C) Formic Acid. 24. ..... is an example of an amphoteric oxide A) Carbon dioxide. B) Sulphur dioxide. C) Copper oxide. D) Aluminium oxide. Show Answer Correct Answer: D) Aluminium oxide. 25. Chemical formula of Bleaching Powder. A) Case $ _ {4} $. B) Cacl $ _ {2} $. C) Caocl $ _ {2} $. D) Ca (oh) $ _ {2} $. Show Answer Correct Answer: C) Caocl $ _ {2} $. 26. Fe(OH)3 is said to be a: A) Triacidic base. B) Diacidic base. C) Tribasic acid. D) Dibasic acid. Show Answer Correct Answer: A) Triacidic base. 27. NaOH may be found in drain cleaners and as a component of soaps. Is NaOH an acid or a base? A) Acid. B) Base. C) Neither (Neutral). D) None of the above. Show Answer Correct Answer: B) Base. 28. What is$^{}$ the name of this ion:H$_{3}$O$^{+}$? A) Hydrogen ion. B) Helium ion. C) Hydronium ion. D) Hepatic ion. Show Answer Correct Answer: C) Hydronium ion. 29. A solution reacts with crushed egg-shells to give a gas that turns lime water milky ..... A) LiCl. B) NaCl. C) KCl. D) HCl. Show Answer Correct Answer: D) HCl. 30. Sodium hydroxide turns phenolphthalein solution ..... A) Pink. B) Yellow. C) Red. D) Colorless. Show Answer Correct Answer: A) Pink. 31. What new substance in formed during nuetralisation? A) Curd. B) Lemon Juice. C) Salt. D) Sugar. Show Answer Correct Answer: C) Salt. 32. An organic substance that changes color in the presence of an acid or base A) Catalyst. B) Indicator. C) Salt. D) Inhibitor. Show Answer Correct Answer: B) Indicator. 33. A sample of soil is mixed with water and allow to settle. The soln turns yellowish orange which of the foll soln will turn the colour to greenish blue A) Common salt. B) Antacid. C) Vinegar. D) Lemon juice. Show Answer Correct Answer: B) Antacid. 34. After a compound X was added to water, the pH using indicator paper was less than 7. The resulting solution was added to some calcium carbonate and it was noted that effervescence took place. What could compound X be? A) $ _ {2} $ of. B) CaO. C) HNO$_{3}$. D) MgO. Show Answer Correct Answer: C) HNO$_{3}$. 35. A lighted splint was held over a flask in which a gas was given off. The splint went out with a pop. Which gas was given off? A) Hydrogen. B) Oxygen. C) Chlorine. D) Ammonia. Show Answer Correct Answer: A) Hydrogen. 36. How do we make a dilution? A) Add more solute. B) Add more solvent. C) Remove solvent. D) Remove solute. Show Answer Correct Answer: B) Add more solvent. 37. Solid sodium bicarbonate was placed on a strip of pH paper. The colour of the strip A) Turns red. B) Did not change. C) Turned green and slightly yellow. D) Turned pink. Show Answer Correct Answer: C) Turned green and slightly yellow. 38. The correct statement regarding universal indicator is A) It gives blue colour at pH = 3. B) It is an indicator having pH = 7. C) It gives orange colour at pH = 3. D) It becomes colourless at pH = 7. Show Answer Correct Answer: C) It gives orange colour at pH = 3. 39. What range of values on the pH scale represent solutions with a higher ratio of hydroxide (OH$^{-}$) ions? A) Below 7. B) 7. C) Above 7. D) 0-14. Show Answer Correct Answer: C) Above 7. 40. An indicator that turn green in basic medium is ..... A) China rose. B) Turmeric power. C) Phenolphthalein. D) Litmus paper. Show Answer Correct Answer: A) China rose. 41. Reddish brown precipitate when Fe(Cl)3 reacts with NaOH shows the presence of ..... A) Nitrous Oxide gas. B) Nitrogen dioxide gas. C) Fe(OH)2. D) Fe(OH)3. Show Answer Correct Answer: D) Fe(OH)3. 42. What is the nature of the Toothpaste we use? A) Acidic. B) Basic. C) Neutral. D) None of the above. Show Answer Correct Answer: B) Basic. 43. Do acids and bases conduct electricity? A) Only acids conduct electricity. B) Only bases conduct electricity. C) Bases and acids conduct electricity. D) Neither conduct electricity. Show Answer Correct Answer: C) Bases and acids conduct electricity. 44. Which of the following word pairs, correctly completes the sentence below? ..... are corrosive substances characterized as having a strong smell, a sour taste, and a ..... A) Bases; pH less than 7. B) Bases; pH greater than 7. C) Acids; pH less than 7. D) Acids; pH greater than 7. Show Answer Correct Answer: C) Acids; pH less than 7. 45. Which substance in the following in its aqueous solution reacts with carbonate to give a gas that turns lime water milky? A) Sodium carbonate. B) Potassium permonganate. C) Hydrochloric acid. D) Copper sulfate. Show Answer Correct Answer: C) Hydrochloric acid. 46. Which one of the following can be used as an acid-base indicator by a visually impared student? A) Litmus. B) Turmeric. C) Vanilla essence. D) Petunia leaves. Show Answer Correct Answer: C) Vanilla essence. 47. Antacid medicine is used for indigestion because A) It helps to produce digestive juice. B) It neutralizes the acid produced. C) It oxidizes food material. D) It neutralizes digested food material. Show Answer Correct Answer: B) It neutralizes the acid produced. 48. If a solution is neither acidic or basic it has a pH of ..... A) 7. B) 1. C) 13. D) 6. Show Answer Correct Answer: A) 7. 49. Which of the following is most likely to be basic: A) Lemon juice. B) Vinegar. C) Coke. D) Laundry detergent. Show Answer Correct Answer: D) Laundry detergent. 50. Sodium hydrogen carbonate when added to acetic acid evolves a gas. Which of the statement is true about the gas evolved A) It changes the soln colorless. B) It has a pungent smell. C) It turns lime water milky. D) It burns with a pop sound. Show Answer Correct Answer: C) It turns lime water milky. 51. Which of the following values would represent the pH of a strong base? A) 7. B) 13. C) 8. D) 1. Show Answer Correct Answer: B) 13. 52. Which of the following acid is a weak acid? A) HNO$_{3}$. B) H$_{2}$SO$_{4}$. C) CH$_{3}$COOH. D) Hcl. Show Answer Correct Answer: C) CH$_{3}$COOH. 53. Acids are ..... , which means they "eat away" at other materials. A) Alkaline. B) Transitional metal. C) Corrosive. D) Flammable. Show Answer Correct Answer: C) Corrosive. 54. Alkalis react with ammonium salts on heating to give ..... A) Hydronium ion. B) Ammonium ion. C) Hydrogen. D) Ammonia. Show Answer Correct Answer: D) Ammonia. 55. In a sample of solution, when methyl orange is added as an indicator, the solution turns yellow in colour, then resulting solution could be A) HCl. B) Salt. C) Water. D) NaOH. Show Answer Correct Answer: D) NaOH. 56. Complete this equation:sulfuric acid + potassium hydroxide ..... > A) Potassium oxide + hydrogen. B) Potassium sulfate + hydrogen. C) Potassium sulfate + water. D) Potassium chloride + water. Show Answer Correct Answer: C) Potassium sulfate + water. 57. Why does vinegar help preserve things like pickles? A) It keeps moisture in. B) It preserves flavors and crispness. C) It kills bacteria that break down foods. D) It keeps the cells alive. Show Answer Correct Answer: C) It kills bacteria that break down foods. 58. When hydrogen chloride gas is prepared on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to- A) Absorb moisture from the gas. B) Absorb the evolved gas. C) Moisten the gas. D) Absorb Cl$^{-}$ ions from the evolved gas. Show Answer Correct Answer: A) Absorb moisture from the gas. 59. What is the pH range of our body? A) 7.2-8.0. B) 7.0-8.4. C) 7.0-7.8. D) 7.2-8.4. Show Answer Correct Answer: C) 7.0-7.8. 60. Milk of magnesia is used as an A) Chocolate. B) Soup. C) Antacid. D) None of them. Show Answer Correct Answer: C) Antacid. ← PreviousNext →Related QuizzesScience QuizzesClass 10 QuizzesClass 10 Science Chapter 2 Acids, Bases And Salts Quiz 1Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 3Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 4Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 5 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books