This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 2 Acids, Bases And Salts – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. The correct statement regarding universal indicator is A) It is an indicator having pH = 7. B) It gives blue colour at pH = 3. C) It becomes colourless at pH = 7. D) It gives orange colour at pH = 3. Show Answer Correct Answer: D) It gives orange colour at pH = 3. 3. 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. 4. An indicator that turn green in basic medium is ..... A) Phenolphthalein. B) China rose. C) Litmus paper. D) Turmeric power. Show Answer Correct Answer: B) China rose. 5. Common salt is A) Acidic. B) Neutral. C) Basic. D) All of them. Show Answer Correct Answer: B) Neutral. 6. Reddish brown precipitate when Fe(Cl)3 reacts with NaOH shows the presence of ..... A) Fe(OH)2. B) Fe(OH)3. C) Nitrogen dioxide gas. D) Nitrous Oxide gas. Show Answer Correct Answer: B) Fe(OH)3. 7. 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. 8. 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. 9. 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) Acids; pH less than 7. B) Acids; pH greater than 7. C) Bases; pH greater than 7. D) Bases; pH less than 7. Show Answer Correct Answer: A) Acids; pH less than 7. 10. 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) Copper sulfate. C) Hydrochloric acid. D) Potassium permonganate. Show Answer Correct Answer: C) Hydrochloric acid. 11. 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. 12. Antacid medicine is used for indigestion because A) It neutralizes the acid produced. B) It neutralizes digested food material. C) It oxidizes food material. D) It helps to produce digestive juice. Show Answer Correct Answer: A) It neutralizes the acid produced. 13. If a solution is neither acidic or basic it has a pH of ..... A) 1. B) 13. C) 6. D) 7. Show Answer Correct Answer: D) 7. 14. Which of the following is most likely to be basic: A) Lemon juice. B) Vinegar. C) Laundry detergent. D) Coke. Show Answer Correct Answer: C) Laundry detergent. 15. Sodium hydrogen carbonate when added to acetic acid evolves a gas. Which of the statement is true about the gas evolved A) It turns lime water milky. B) It burns with a pop sound. C) It changes the soln colorless. D) It has a pungent smell. Show Answer Correct Answer: A) It turns lime water milky. 16. Which of the following values would represent the pH of a strong base? A) 1. B) 8. C) 7. D) 13. Show Answer Correct Answer: D) 13. 17. Which of the following acid is a weak acid? A) Hcl. B) H$_{2}$SO$_{4}$. C) HNO$_{3}$. D) CH$_{3}$COOH. Show Answer Correct Answer: D) CH$_{3}$COOH. 18. Acids are ..... , which means they "eat away" at other materials. A) Transitional metal. B) Alkaline. C) Flammable. D) Corrosive. Show Answer Correct Answer: D) Corrosive. 19. Alkalis react with ammonium salts on heating to give ..... A) Hydrogen. B) Ammonium ion. C) Ammonia. D) Hydronium ion. Show Answer Correct Answer: C) Ammonia. 20. 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) NaOH. D) Water. Show Answer Correct Answer: C) NaOH. 21. Complete this equation:sulfuric acid + potassium hydroxide ..... > A) Potassium oxide + hydrogen. B) Potassium chloride + water. C) Potassium sulfate + hydrogen. D) Potassium sulfate + water. Show Answer Correct Answer: D) Potassium sulfate + water. 22. 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. 23. Most foods are A) Acid. B) Basic. C) Neutral. D) Salts. Show Answer Correct Answer: A) Acid. 24. 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 the evolved gas. B) Moisten the gas. C) Absorb moisture from the gas. D) Absorb Cl$^{-}$ ions from the evolved gas. Show Answer Correct Answer: C) Absorb moisture from the gas. 25. What is the pH range of our body? A) 7.0-7.8. B) 7.2-8.0. C) 7.0-8.4. D) 7.2-8.4. Show Answer Correct Answer: A) 7.0-7.8. ← 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 3Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 4Class 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