This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Salts > Class 7 Science Chapter 4 Salts – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 4 Salts Quiz 6 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Salt can conduct electricity. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. Acid react with metal to form A) Salt + Water. B) Salt+ carbon dioxide. C) Salt + hydrogen. D) Salt + metal oxide. Show Answer Correct Answer: C) Salt + hydrogen. 3. Salts exist in ..... state. A) Solid. B) Liquid. C) Gas. D) None of the above. Show Answer Correct Answer: A) Solid. 4. Riddle:I am an Acid ..... I am helpful in digestion of food particles in our body! If I am too much acidic, you will surely take antacid to neutralize me. Who am I? A) Sulphuric Acid. B) HCL Acid. C) Citric Acid. D) Milk of Magnesia. Show Answer Correct Answer: B) HCL Acid. 5. Which one of these is an acid salt A) Calcium bicarbonate. B) Potassium hydroxide. C) Sodium sulphate. D) Basic lead chloride. Show Answer Correct Answer: A) Calcium bicarbonate. 6. When carrying out a titration, what is the name of the equipment used to add incremental amounts of acid to the conical flask? A) Burette. B) Measuring cylinder. C) Glass pipette. D) Separating funnel. Show Answer Correct Answer: A) Burette. 7. Red litmus acidic AND chemical medium RESPECTIVELY A) Pink and yelow. B) Blue and red. C) Red and blue. D) Yellow and pink. Show Answer Correct Answer: C) Red and blue. 8. A phenomenon in which salts reacts with water to give an acidic or an alkaline solution it is knows as (a) A) Deliquwaxwnce. B) Hygroscopy. C) A. hydrolysis. D) Effloroscence. E) Water of crysalisation. F) Deli. Show Answer Correct Answer: C) A. hydrolysis. 9. When acids dissolved in water they release- A) H-ions. B) Ho+ ions. C) OH-ions. D) Hydrogen + ions. Show Answer Correct Answer: D) Hydrogen + ions. 10. Ammonia is found in many household items such as window cleaners. It turns red litmus blue. What is its nature? A) Neutral. B) Basic. C) Acidic. D) None of the above. Show Answer Correct Answer: B) Basic. 11. Arctic acid is present in A) Soap. B) Vinegar. C) Curd. D) Common salt. Show Answer Correct Answer: B) Vinegar. 12. What is the name of the following:NH$_{3}$ A) Ammonia. B) Ammonium. C) Nitrogen hydride. D) Nitric acid. Show Answer Correct Answer: A) Ammonia. 13. Hydrochloric acid is added to a beaker containing a piece of zinc. Zinc chloride is formed and hydrogen gas is released.This is an example of: A) Chemical reaction. B) Physical change. C) Crystallisation. D) None of these. Show Answer Correct Answer: A) Chemical reaction. 14. The solubility of lead iodide in pure water is ..... the solubility of lead iodide in 0.1 M potassium iodide. A) Greater than. B) Less than. C) The same as. D) None of the above. Show Answer Correct Answer: A) Greater than. 15. If the Ph level is 7, then the solution is A) Acidic. B) Basic. C) Neutral. D) None of the above. Show Answer Correct Answer: C) Neutral. 16. ACID REACTS WITH BASE TO FORM? A) CHEESE. B) SALT. C) SUGAR. D) HONEY. Show Answer Correct Answer: B) SALT. 17. Which of the salt in the following can be prepared by using precipitation? Which of the following salts can be prepared through precipitation? A) Lead (2) Ethanote / lead (2) etanoat. B) Ammonium sulphate / Ammonium sulfat. C) ZINC Oxide / Zinc Oksida. D) Zinc choride / Zink klorida. Show Answer Correct Answer: C) ZINC Oxide / Zinc Oksida. 18. Compound calcium phosphate is classified as: A) Acidic salt. B) Basic salt. C) Neutral salt. D) None of the above. Show Answer Correct Answer: C) Neutral salt. 19. There are three types of litmus paper A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. What are some common examples of bases? A) Vinegar, lemon juice, orange juice. B) Bleach, window cleaner, dish soap. C) Hydrochloric acid, sulfuric acid, nitric acid. D) Sodium hydroxide, potassium hydroxide, ammonia. Show Answer Correct Answer: D) Sodium hydroxide, potassium hydroxide, ammonia. 21. In a chemistry class, what is the nature of a solution when it has a pH of 7? A) Basic. B) Salts. C) Neutral. D) Acidic. Show Answer Correct Answer: C) Neutral. 22. Metal + Oxygen yields ..... A) Metal Oxide. B) Metal Oxide + Hydrogen. C) Metal Hydroxide + Hydrogen. D) Metal Oxide + Water. Show Answer Correct Answer: A) Metal Oxide. 23. Na2CO3. 10H2O is A) Tartaric acid. B) Bleaching powder. C) Baking soda. D) Washing soda. Show Answer Correct Answer: D) Washing soda. 24. Calculate the solubilty of lead iodide in 0.010 M sodium iodide. Ksp for lead iodide is 1.4 x 10$^{-8}$ A) 1.4 x 10$^{-4}$ M. B) 3.6 x 10$^{-2}$ M. C) 0.010 M. D) 1.9 x 10$^{-4}$ M. Show Answer Correct Answer: D) 1.9 x 10$^{-4}$ M. 25. In order to obtain an insoluble salt from a mixture, which of the following method shhould be used? A) Filtration. B) Crystallization. C) Distillation. D) Evaporation. Show Answer Correct Answer: A) Filtration. 26. Which of the following properties describes salts that contains sodium, potassium or ammonium ions? A) Produce oxygen gas when heated. B) React with water to produce salt. C) Insoluble in water. D) Are soluble in water. Show Answer Correct Answer: D) Are soluble in water. 27. How do acids taste and feel? A) Sour and can cause a burning sensation. B) Bitter and slimy. C) Salty and grainy. D) Sweet and cooling. Show Answer Correct Answer: A) Sour and can cause a burning sensation. 28. What products are produced when we react an acid with an alkali? A) Salt + water. B) Salt + carbon dioxide + water. C) Salt + hydrogen. D) Salt + water + hydrogen. Show Answer Correct Answer: A) Salt + water. 29. If a solution turns blue litmus to red, what colour will be observed if the same is placed on pH paper A) Green. B) Blue. C) Red. D) None. Show Answer Correct Answer: A) Green. 30. The following salt in water does not experience hydrolysis is ..... A) HCOONa. B) Al (CN) 3. C) CH3COOK. D) K3PO4. E) CASO4. Show Answer Correct Answer: E) CASO4. 31. To sodium hydroxide in a beaker, few drops of phenolphthalein were added. What will you observe? A) Blue colour. B) Red colour. C) Pink colour. D) No change in colour. Show Answer Correct Answer: C) Pink colour. 32. Which of the following factors does NOT affect the solubility of a salt in water? A) Pressure. B) Color of the salt. C) Nature of the solute. D) Temperature. Show Answer Correct Answer: B) Color of the salt. 33. Which of the following will give reddish brown colour with turmeric paper strip? A) Acids. B) Bases. C) Neutral substances. D) None of the above. Show Answer Correct Answer: B) Bases. 34. State the name of reaction to Produce Insoluble Salt? State the name of acts of reply to produce unsolved salt? A) Displacement Reaction Action on the enlargement. B) Double Decomposition Reaction Double Decomposition Action. C) Titration Method / Pentitratan Response. D) None of the above. Show Answer Correct Answer: B) Double Decomposition Reaction Double Decomposition Action. 35. Ionic precipitation involves what type of reaction? A) Neutralization. B) Double displacement. C) All the above. D) None of the above. Show Answer Correct Answer: B) Double displacement. 36. Ammonia that turns red litmus blue A) Can't say. B) Acidic. C) Basic. D) Neutral. Show Answer Correct Answer: C) Basic. 37. Which of the followings is an acid salt? A) Buy $ _ {3} $. B) NaCl. C) CH $ _ {3} $ coona. D) That $ _ {2} $ so $ _ {4} $. Show Answer Correct Answer: A) Buy $ _ {3} $. 38. Salt may be Acid, Bases and Neutral A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 39. Acid reacts with metal carbonate to form A) Salt + carbon dioxide + water. B) Salt + water. C) Salt + carbon dioxide. D) Salt + hydroxide + water. Show Answer Correct Answer: A) Salt + carbon dioxide + water. 40. Precipitation involves mixing ..... to form an insoluble solid that separates out from the reaction mixture. A) Acid and alkali. B) Acid and metal. C) Two acids. D) Two solutions. Show Answer Correct Answer: D) Two solutions. 41. When HCl is added to pure water, which of the following will occur? A) The [H+] will increase. B) The pH will decrease. C) The [OH-] will decrease. D) All of the above. Show Answer Correct Answer: D) All of the above. 42. Is heat evolved in neutralisation process? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 43. Salts of nitric acid are named as ..... A) Sulphates. B) Nitrates. C) Acetates. D) Carbonates. Show Answer Correct Answer: B) Nitrates. 44. Calculate the solubility of iron(III) hydroxide in a solution in which the pH is 12. A) 4 x 10$^{-30}$ M. B) 2 x 10$^{5}$ M. C) 4 x 10$^{-38}$ M. D) 4 x 10$^{-36}$ M. Show Answer Correct Answer: D) 4 x 10$^{-36}$ M. 45. If you face indigestion, what should you do? A) Nothing. B) Use antacid like milk of magnesia. C) Eat food. D) Take substances with citric acid. Show Answer Correct Answer: B) Use antacid like milk of magnesia. 46. At what temperature is gypsum heated to form Plaster of Paris? A) 100$^\circ$C. B) 120$^\circ$C. C) 110$^\circ$C. D) 90$^\circ$C. Show Answer Correct Answer: A) 100$^\circ$C. 47. A chemistry teacher mixed hydrochloric acid with sodium hydroxide to form a salt. What are present in the salt that forms? A) Sodium chloride. B) Sodium ions and nitrate ions. C) Only sodium ions. D) Only nitrate ions. Show Answer Correct Answer: B) Sodium ions and nitrate ions. 48. Lead (II) Sulphate, PbSO$_{4}$ A) Soluble Salt. B) Insoluble Salt. C) All the above. D) None of the above. Show Answer Correct Answer: B) Insoluble Salt. 49. Salts have a pH level between what range? A) 7 and 14. B) 0 and 7. C) 3 and 8. D) 0 and 14. Show Answer Correct Answer: B) 0 and 7. 50. Phenolphthalein remains ..... when added to dilute hydrochloric acid but turns ..... when added to sodium hydroxide solution. A) Green, magenta. B) Red, blue. C) Colourless, pink. D) Colourless, red. Show Answer Correct Answer: C) Colourless, pink. 51. What is the Colored Gas Produce During Thermal Decomposition of Zinc Nitrate? Are the colored gas that is produced during the thermal decomposition for zinc nitrate? A) Nitrogen Dioxide / Nitrogen Diocsida. B) Chlorine Gas / Gas Klorin. C) Nitrogen Oxide / Nitrogen Oksida. D) Bromine Gas / Gas Bromine. Show Answer Correct Answer: A) Nitrogen Dioxide / Nitrogen Diocsida. 52. In neutralisation reaction a new substance is formed. This is called ..... A) Salt. B) Acid. C) Sugar. D) Base. Show Answer Correct Answer: A) Salt. 53. The term acid has been derived from the Latin word ..... which means sour. A) Acidus. B) Base. C) Salt. D) Acetate. Show Answer Correct Answer: A) Acidus. 54. One benefit of pH paper is that it ..... A) It is expensive. B) It is very accurate. C) Only tells you if a substance is an acid or a base. D) Tells you the pH of a substance. Show Answer Correct Answer: D) Tells you the pH of a substance. 55. What are the two products of Neutralization? A) Salt + Water. B) Salt + Water + Carbon Dioxide. C) Salt + Water + Hydrogen. D) None of the above. Show Answer Correct Answer: A) Salt + Water. 56. Salts produced by the reactions of hydrochloric acid are known as ..... A) Nitrates. B) Chlorines. C) Bromides. D) Chlorides. Show Answer Correct Answer: D) Chlorides. 57. State whether the following compound is soluble or insoluble. Barium chloride BaCl$_{2}$ A) Soluble. B) Insoluble. C) All the above. D) None of the above. Show Answer Correct Answer: A) Soluble. 58. The ..... is the thing being dissolved. A) Solute. B) Solution. C) Solvent. D) Mixture. Show Answer Correct Answer: A) Solute. 59. Tamarind, Grapes, Unripe Mangoes, Cherries, Peach etc ..... contains A) Ascorbic Acid. B) Citric Acid. C) Tartaric Acid. D) Lactic Acid. Show Answer Correct Answer: C) Tartaric Acid. 60. Complete this equation:sulfuric acid + potassium hydroxide $\rightarrow$ A) Potassium chloride + water. B) Potassium oxide + hydrogen. C) Potassium sulfate + water. D) Potassium sulfate + hydrogen. Show Answer Correct Answer: C) Potassium sulfate + water. ← PreviousNext →Related QuizzesScience QuizzesClass 7 QuizzesClass 7 Science Chapter 4 Salts Quiz 1Class 7 Science Chapter 4 Salts Quiz 2Class 7 Science Chapter 4 Salts Quiz 3Class 7 Science Chapter 4 Salts Quiz 4Class 7 Science Chapter 4 Salts Quiz 5Class 7 Science Chapter 4 Salts Quiz 7Class 7 Science Chapter 4 Salts Quiz 8Class 7 Science Chapter 4 Salts Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books