This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 2 Acids, Bases And Salts – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which one of the following will turn blue litmus red? A) Vinegar. B) Lime water. C) Baking soda solution. D) Washing soda solution. Show Answer Correct Answer: A) Vinegar. 2. Complete this equation:sulphuric 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. 3. Which gases are evolved in chloro alkali process A) Hydrogen and chlorine. B) Chlorine and oxygen. C) Hydrogen and oxygen. D) Carbon dioxide and Oxygen. Show Answer Correct Answer: A) Hydrogen and chlorine. 4. A child got stung by a bee. Some of the Elders suggest to add Baking Soda or Lemon Juice. Which one do you think is Appropriate? A) Lemon Juice. B) Water. C) Baking Soda. D) None of the Above. Show Answer Correct Answer: C) Baking Soda. 5. Which of the following is not a acidic salt? A) COSO4. B) NH4CL. C) FeCl3. D) CH3Coon. Show Answer Correct Answer: D) CH3Coon. 6. Which of the following indicators turn red in an acidic solution? A) Phenolphthalein. B) Red litmus. C) Turmeric. D) Methyl orange. Show Answer Correct Answer: D) Methyl orange. 7. Salts formed by the reaction of strong acid and strong base are ..... salts. A) Acidic salts. B) Basic salts. C) Neutral salts. D) None. Show Answer Correct Answer: C) Neutral salts. 8. Identify basic salt. A) Sodium chloride. B) Ammonium chloride. C) Sodium acetate. D) Copper acetate. Show Answer Correct Answer: C) Sodium acetate. 9. What is the number of water of crystallization in Copper sulphate crystals? A) 3. B) 2. C) 5. D) 4. Show Answer Correct Answer: C) 5. 10. 20 mL of a solution of NaOH is found to be completely neutralised by 16 mL of a given solution of HCl. If we take 40 mL of the same solution of NaOH, the amount of HCl solution (the same solution as before) required to neutralise it will be A) 10 ml. B) 8 ml. C) 32 ml. D) 80 ml. Show Answer Correct Answer: C) 32 ml. 11. Metal hydrogen carbonates react with acids to give A) Salt, water, chlorine. B) Salt, water and carbon di oxide. C) Salt and carbon di oxide. D) Salt, hydrogen and carbon dioxide. Show Answer Correct Answer: B) Salt, water and carbon di oxide. 12. An aqueous soln turns red lithmus blue. excess addition of which of the following would reverse the change A) Baking powder. B) Lime. C) Ammonium hydroxide solution. D) HCL. Show Answer Correct Answer: D) HCL. 13. Which of the following is not a dibasic acid? A) Acetic acid. B) Sulphurous acid. C) Sulphuric acid. D) Carbonic acid. Show Answer Correct Answer: A) Acetic acid. 14. Alkalis are A) Acids, which are soluble in water. B) Acids, which are insoluble in water. C) Bases, which are insoluble in water. D) Bases, which are soluble in water. Show Answer Correct Answer: D) Bases, which are soluble in water. 15. All solutions that fall between 0 and 6.9 are A) Acids. B) Bases. C) Neutral. D) Phytoplankton. Show Answer Correct Answer: A) Acids. 16. An indicator is? A) A lab manual or guide. B) Something like litmus paper that can tell you if a substance is acidic or basic. C) A PS4 game where you pretend to direct traffic. D) Something only scientists in a lab can use. Show Answer Correct Answer: B) Something like litmus paper that can tell you if a substance is acidic or basic. 17. An alkali is a compound which when dissolved in water yields: A) Hydronium ions. B) Hydrogen ions. C) Hydroxyl ions. D) Ammonium ions. Show Answer Correct Answer: C) Hydroxyl ions. 18. Four solutions are tested and found to have the following pH values. Which of these substances would be considered the weakest acid? A) Lemon Juice-pH=2. B) Apple Juice-pH=4.5. C) Shower Cleaner-pH=5.5. D) Hydrogen Peroxide-pH=7. Show Answer Correct Answer: C) Shower Cleaner-pH=5.5. 19. What is formed when zinc reacts with sodium hydroxide? A) Zinc hydroxide and sodium. B) Sodium zincate and hydrogen gas. C) Zinc oxide and hydrogen gas. D) Sodium zincate and water. Show Answer Correct Answer: B) Sodium zincate and hydrogen gas. 20. An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change? A) Baking powder. B) Ammonium hydroxide solution. C) Hydrochloric acid. D) Lime. Show Answer Correct Answer: C) Hydrochloric acid. 21. Calculate the pH of 2 x 10$^{-1}$ M HCl; Take log 2 = 0.3 A) 1. B) 2. C) 1.3. D) 0.7. Show Answer Correct Answer: D) 0.7. 22. Solution of sodium hydrogen carbonate is alkaline in nature. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. Plaster of Paris is obtained by heating: A) Gypsum. B) Limestone. C) Sodium chloride. D) Acetic acid. Show Answer Correct Answer: A) Gypsum. 24. Sting of an ant contains A) Vinegar. B) Common salts. C) Milk of magnesia. D) Formic acid. Show Answer Correct Answer: D) Formic acid. 25. What range of values on the pH scale represent solutions with a higher ratio of hydronium (H$_{3}$O$^{+}$) ions? A) 0-14. B) Below 7. C) 7. D) Above 7. Show Answer Correct Answer: B) Below 7. ← 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 5Class 10 Science Chapter 2 Acids, Bases And Salts Quiz 6Class 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