This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 4 Salts – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 4 Salts Quiz 14 (25 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+ carbon dioxide. B) Salt + hydrogen. C) Salt + Water. D) Salt + metal oxide. Show Answer Correct Answer: B) 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) HCL Acid. B) Sulphuric Acid. C) Citric Acid. D) Milk of Magnesia. Show Answer Correct Answer: A) HCL Acid. 5. Which one of these is an acid salt A) Potassium hydroxide. B) Sodium sulphate. C) Basic lead chloride. D) Calcium bicarbonate. Show Answer Correct Answer: D) 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) Glass pipette. B) Measuring cylinder. C) Separating funnel. D) Burette. Show Answer Correct Answer: D) 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) A. hydrolysis. B) Water of crysalisation. C) Effloroscence. D) Hygroscopy. E) Deli. F) Deliquwaxwnce. Show Answer Correct Answer: A) A. hydrolysis. 9. When acids dissolved in water they release- A) OH-ions. B) Ho+ ions. C) Hydrogen + ions. D) H-ions. Show Answer Correct Answer: C) 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) Curd. B) Soap. C) Common salt. D) Vinegar. Show Answer Correct Answer: D) 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) SALT. B) SUGAR. C) HONEY. D) CHEESE. Show Answer Correct Answer: A) 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) Zinc choride / Zink klorida. B) Ammonium sulphate / Ammonium sulfat. C) ZINC Oxide / Zinc Oksida. D) Lead (2) Ethanote / lead (2) etanoat. 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) Bleach, window cleaner, dish soap. B) Sodium hydroxide, potassium hydroxide, ammonia. C) Hydrochloric acid, sulfuric acid, nitric acid. D) Vinegar, lemon juice, orange juice. Show Answer Correct Answer: B) 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) Acidic. B) Basic. C) Salts. D) Neutral. Show Answer Correct Answer: D) Neutral. 22. Metal + Oxygen yields ..... A) Metal Oxide + Water. B) Metal Oxide + Hydrogen. C) Metal Oxide. D) Metal Hydroxide + Hydrogen. Show Answer Correct Answer: C) Metal Oxide. 23. Na2CO3. 10H2O is A) Washing soda. B) Baking soda. C) Bleaching powder. D) Tartaric acid. Show Answer Correct Answer: A) 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) 1.9 x 10$^{-4}$ M. B) 1.4 x 10$^{-4}$ M. C) 0.010 M. D) 3.6 x 10$^{-2}$ M. Show Answer Correct Answer: A) 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. ← PreviousNext →Related 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 6Class 7 Science Chapter 4 Salts Quiz 7Class 7 Science Chapter 4 Salts Quiz 8Class 7 Science Chapter 4 Salts Quiz 9Class 7 Science Chapter 4 Salts Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books