This quiz works best with JavaScript enabled. Home > Cbse > Class 10 > Science > Acids > Class 10 Science Chapter 2 Acids, Bases And Salts – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is a salt:ammonia or sodium chloride? A) Ammonia. B) Sodium chloride. C) All the above. D) None of the above. Show Answer Correct Answer: B) Sodium chloride. 2. Name the products of the following reaction:Calcium carbonate + Hydrochloric acid A) Calcium carbonate + carbon dioxide. B) Calcium chloride + hydrogen. C) Calcium chloride + carbon dioxide + water. D) Calcium chloride + water. Show Answer Correct Answer: C) Calcium chloride + carbon dioxide + water. 3. The general taste of acids and bases is respectively- A) Sweet and salty. B) Sour and salty. C) Sour and sweet. D) Sour and bitter. Show Answer Correct Answer: D) Sour and bitter. 4. An aq solution turns red lit. solution blue.Excess addition of which of the following solution would reverse the change? A) Ammonium hydroxide solution. B) Lime. C) Baking powder. D) Hydrochloric acid. Show Answer Correct Answer: D) Hydrochloric acid. 5. Aq solution of NaCl A) Dilute brine solution. B) Brine solution. C) Bromine solution. D) Chloro solution. Show Answer Correct Answer: B) Brine solution. 6. Pure water (H$_{2}$O) has a pH of 7 and would be classified as ..... A) A base. B) A neutral substance. C) Both an acid and a base. D) An acid. Show Answer Correct Answer: B) A neutral substance. 7. In which of the following bleaching powder is used? A) Oxidising agent in chemical industry. B) For disinfecting drinking water. C) For bleaching wood pulp in paper factories. D) All of these. Show Answer Correct Answer: D) All of these. 8. Higher the hydronium ion concentration ..... is the pH value. A) Lower. B) Neutral. C) Cannot be predicted on this basis. D) Higher. Show Answer Correct Answer: A) Lower. 9. As we dilute a solution ..... A) The volume increases and the molarity (M) increases. B) The volume increases and the molarity (M) decreases. C) The volume decreases and the molarity (M) increases. D) The volume decreases and the molarity (M) decreases. Show Answer Correct Answer: B) The volume increases and the molarity (M) decreases. 10. Which of the following acid-base theories best describes the acidic nature of BF$_{3}$? A) Arrhenius Concept. B) Bronsted Lowry Concept. C) Lewis Concept. D) None. Show Answer Correct Answer: C) Lewis Concept. 11. Which solution releases H+ in solution? A) Water. B) Buffer. C) Base. D) Acid. Show Answer Correct Answer: D) Acid. 12. An acid A with sodium hydrogencarbonate is used in making the cakes fluffy and spongy. It is due to the release of B gas A) A:Oxalic acid:B:CO$_{2}$. B) A:Tartaric acid:B:CO$_{2}$. C) A:Tartaric acid:B:O$_{2}$. D) A:Succinic acid:B:H$_{2}$. Show Answer Correct Answer: B) A:Tartaric acid:B:CO$_{2}$. 13. Bases are the substance which will produce A) OH$^{-}$ions. B) H$^{+ ions}$. C) Both. D) None. Show Answer Correct Answer: A) OH$^{-}$ions. 14. Lime water turns milky on passing which gas through it A) CO2. B) Cl2. C) NH3. D) H2. Show Answer Correct Answer: A) CO2. 15. Zinc granules on treating with an acid X, forms zinc sulphate (ZnSO4) salt along with the evolution of a gas Y which burns with a pop sound when brought near to a burning candle. Identify the acid X and gas evolved Y. A) X-Sulphuric acid and Y-Oxygen gas. B) X-Hydrochloric acid and Y-Oxygen gas. C) X-Sulphuric acid and Y-Hydrogen gas. D) X-Hydrochloric acid and Y-Hydrogen ga. Show Answer Correct Answer: C) X-Sulphuric acid and Y-Hydrogen gas. 16. Which of the foll phenomena occur when a small amunt of acid is added to water A) Formation. B) Neutralization. C) Ionisation. D) Dilution. Show Answer Correct Answer: D) Dilution. 17. Chlor-Alkali process ..... are produced A) NaOH, Cl $ _ {2} $. B) NaOH, Cl$_{2, }$H$_{2}$. C) NaOH, Cl $ _ {2} $, n $ _ {2} $. D) None of these. Show Answer Correct Answer: B) NaOH, Cl$_{2, }$H$_{2}$. 18. 1] The litmus paper is produced from A) Spinach. B) Lichens. C) Plant leaves. D) Fruits. Show Answer Correct Answer: B) Lichens. 19. The following properties are describing ..... :* pH range of 0-6.9*turn litmus red*contains more H+ than OH- A) Bases. B) Acids. C) Salts. D) Neutralization. Show Answer Correct Answer: B) Acids. 20. Which of the following salts will give an aqueous solution having pH of almost 7? A) Ammonium chloride. B) Calcium chloride. C) Ammonium nitrate. D) Sodium chloride. Show Answer Correct Answer: D) Sodium chloride. 21. When found in food, bases often taste ..... A) Soggy. B) Salty. C) Bitter. D) Sour. Show Answer Correct Answer: C) Bitter. 22. Which of the following can be used by a blind person to test whether a given product is acidic or basic? A) Red Cabbage Extract. B) Turmeric. C) P$^{H}$ paper. D) Clove. Show Answer Correct Answer: D) Clove. 23. Which of the foll is not a base A) C2H5OH. B) NH4OH. C) NAOH. D) KOH. Show Answer Correct Answer: A) C2H5OH. 24. Which of the following salts is least likely to react with water? A) NaCl. B) CH $ _ {3} $ cook $ _ {4} $. C) CH $ _ {3} $ coona. D) NH$_{4}$Cl. Show Answer Correct Answer: A) NaCl. 25. Which of the following would be least likely to act as a reducing agent? A) SO$_{3}$. B) H$_{2}$S. C) SO$_{2}$. D) NO. Show Answer Correct Answer: A) SO$_{3}$. 26. Which one of these is an indicator? A) Lotion. B) Orange Juice. C) Shampoo. D) Litmus Paper. Show Answer Correct Answer: D) Litmus Paper. 27. Salt water did not react with the Red or Blue litmus paper. This must mean A) Salt water is neutral. B) Salt water is charged. C) Salt water is an Acid. D) Salt water is a Base. Show Answer Correct Answer: A) Salt water is neutral. 28. Which of the following salt is acidic in nature? A) CaCO$_{3}$. B) NaCl. C) CH $ _ {3} $ coona. D) NH$_{4}$Cl. Show Answer Correct Answer: D) NH$_{4}$Cl. 29. The chemical formula of caustic potash is A) KOH. B) CA (OH) 2. C) NH4OH. D) NaOH. Show Answer Correct Answer: A) KOH. 30. Which of the foll substances will not give carbon dioxide on treatment with dilute acid A) Baking soda. B) Limestone. C) Marble. D) Lime. Show Answer Correct Answer: D) Lime. 31. Identify the products, when nitric acid reacts with potassium hydroxide- A) Potassium nitrate & water. B) Potassium hydroxide and water. C) Potassium sulphate and water. D) None. Show Answer Correct Answer: A) Potassium nitrate & water. 32. What colour would hydrochloric acid turns universal indicator? A) Orange. B) Red. C) Yellow. D) Purple. Show Answer Correct Answer: B) Red. 33. NaOH and KOH are also known as- A) Strong bases. B) Alkalis. C) Both. D) None. Show Answer Correct Answer: C) Both. 34. Lichen belongs to which division of the plant kingdom? A) Thallophyta. B) Bryophyta. C) Angiosperms. D) Gymnosperms. Show Answer Correct Answer: A) Thallophyta. 35. Colour of methyl orange in alkali conditions A) Orange. B) Red. C) Yellow. D) Pink. Show Answer Correct Answer: C) Yellow. 36. The function of quick lime in soda lime mixture is to A) Increase the efficiency of soda lime. B) Increase the pH of soda lime. C) Take part in reaction with NaOH. D) Absorb moisture present in soda lime. Show Answer Correct Answer: D) Absorb moisture present in soda lime. 37. Alkalis are substances that produce OH$^{-}$ ion when dissolved in water. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 38. Sulfuric acid reacts with sodium hydroxide to form salt X and water. Name the salt. A) Sodium sulfate. B) Sodium nitrate. C) Sodium chloride. D) None of the above. Show Answer Correct Answer: A) Sodium sulfate. 39. Where is litmus solution extracted from? A) Oranges. B) Lichen. C) Litmus Paper. D) Acids + Bases. Show Answer Correct Answer: B) Lichen. 40. The nature of calcium phosphate is present in tooth enamel is A) Ampherteric. B) Neutral. C) Basic. D) Acidic. Show Answer Correct Answer: C) Basic. 41. Which one of the foll can be used as acid-base indicator by visually impared student A) Vanilla essence. B) Turmeric. C) Litmus. D) Petunia leaves. Show Answer Correct Answer: A) Vanilla essence. 42. Which of the following salts is basic in nature? A) $NaCl$. B) $ NA_2SO_4 $. C) $NH_4NO_3$. D) $ Na_2co_3 $. Show Answer Correct Answer: D) $ Na_2co_3 $. 43. State whether the following statement is TRUE or FALSE?Cane sugar contains hydrogen and may be regarded as an acid A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 44. Neutralization reactions A) Formed from joining positive and negative ions. B) Increases OH ions. C) Froms a salt and water. D) Increases H2O ions. Show Answer Correct Answer: C) Froms a salt and water. 45. Acids react with metals to liberate ..... gas A) H$_{2}$O. B) CO$_{2}$. C) CO. D) H$_{2}$. Show Answer Correct Answer: D) H$_{2}$. 46. An extremely strong base would have a pH of ..... A) 7. B) 9. C) 14. D) 1. Show Answer Correct Answer: C) 14. 47. Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions, respectively are: A) Red and blue. B) Blue and red. C) Pink and colourless. D) Colourless and pink. Show Answer Correct Answer: D) Colourless and pink. 48. Acid used as an eyewash is: A) Phosphoric acid. B) Boric acid. C) Oxalic acid. D) Formic acid. Show Answer Correct Answer: B) Boric acid. 49. Acids react with active metals to liberate: A) Nitrogen. B) Oxygen. C) Hydrogen. D) Carbon dioxide. Show Answer Correct Answer: C) Hydrogen. 50. Name a base that is generally used as an antacid and is called the milk of magnesia. A) Ca (oh) $ _ {2} $. B) CaO. C) NH$_{4}$(OH). D) Mg(OH)$_{2}$. Show Answer Correct Answer: D) Mg(OH)$_{2}$. 51. Nettle sting is a natural source of which acid? A) Tartaric acid. B) Lactic acid. C) Citric acid. D) Methanoic acid. Show Answer Correct Answer: D) Methanoic acid. 52. Which of the following is the conjugate base of NH$_{3}$? A) NH$_{4}$$^{+}$. B) NH$_{2}$$^{-}$. C) NH$_{4}$OH. D) None. Show Answer Correct Answer: B) NH$_{2}$$^{-}$. 53. The difference of molecules of water in gypsum and PoP is A) 3/2. B) 5/2. C) 1/2. D) Dad. Show Answer Correct Answer: A) 3/2. 54. Which of the following values would represent the pH of a strong acid? A) 7. B) 6. C) 1. D) 13. Show Answer Correct Answer: C) 1. 55. The color of red litmus paper in basic salt solution is- A) Changes to blue. B) Remains Red. C) No color change. D) Changes to violet. Show Answer Correct Answer: A) Changes to blue. 56. Name the process that takes place when an acid reacts with an alkali A) Decomposition. B) Photosynthesis. C) Titration. D) Neutralization. Show Answer Correct Answer: D) Neutralization. 57. Which of the foll is acidic in nature A) Humanblood. B) Limewater. C) Antacid. D) Lime juice. Show Answer Correct Answer: D) Lime juice. 58. What is the process of Acid and Bases mixed together called? A) Explosion. B) Indication. C) Inflamation. D) Neutralization. Show Answer Correct Answer: D) Neutralization. 59. Which one of the following can be used as an acid-base indicator by a visually impaired student? A) Vanilla essence. B) Turmeric. C) Methyl Orange. D) Litmus. Show Answer Correct Answer: A) Vanilla essence. 60. Identify weak acid- A) Acetic acid. B) Sulphuric acid. C) Hydrochloric acid. D) Nitric acid. Show Answer Correct Answer: A) Acetic acid. ← 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 2Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 3Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 5 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books