Grade 5 Science – Acids And Basis Quiz
1. An acid turn___ litmus paper to__
2. What is a base
3. Identify one physical property of acid
4. Name one use of bas in our daily lives
5. A substance that changes blue litmus paper to red is
6. which of the following is not an acid
7. A substance that changes red litmus paper to blue is a__
8. Identify one example of a base
9. The following are properties of acid except_
10. which of the following is not a property of a base
11. Which of the following is not a use of acids on daily life
12. The following are uses of bases except one
13. which of the following is not a safety precaution when handling acids and bases
14. Vinegar solution is an example if
15. Which salt do you get when you react sodium and chlorine?
16. The table salt we use at home results from reacting
17. ___are used in making dyes, paints and fertilizer
18. Ammonia has a pH of 12. Ammonia is __________.
19. Soap is a weak base. What is true about the taste of bases?
20. Explain what happens when a strong acid and a strong base are poured into the same container.
21. When dissolved in water, bases produce:.....
22. Which of these solutions is an acid?
23. What does the pH scale measure?
24. Compounds form when _______________.
25. The pH of vinegar is 2.5. Vinegar is a _____________.
26. Which of the following is true about acids and bases?
27. Which type of ion does a base produce when it is dissolved in water?
28. Which statement is true when acids and bases are mixed together?
29. Ranging from 0 to 14, a pH value indicates how acidic or basic a solution is. Which of these pH values would be a strong acid?
30. What is the pH of water?
31. Williams collected a rain sample and measured its pH to be 5.6. What does this mean?
32. What does a pH of 1 indicate about a liquid?
33. Litmus paper can tell you if a solution is acidic, neutral or basic by changing color when placed in a solution. If you test a base with litmus paper, it will turn ____________.
34. What is the pH of a neutral substance?
A neutral substance has a pH of 7, which indicates a balance between acidity and alkalinity.
35. Which of these pH values would indicate that a solution is a weak base?
36. Any substance that produces hydroxide ions in water is known as _____________.
37. Which of the following substances is commonly used to neutralize excess stomach acid?
Antacid tablets are specifically designed to neutralize excess stomach acid and provide relief from heartburn and indigestion.
38. Which of the following is a common household base?
Ammonia is a common household base that is often used for cleaning purposes due to its alkaline properties.
39. What color does litmus paper turn in the presence of an acid?
Litmus paper turns red in the presence of an acid, indicating its acidic nature.
40. Which of the following is a characteristic of acids?
Acids release hydrogen ions (H+) in water, making the solution acidic in nature.
41. What is the pH of a neutral substance?
A neutral substance has a pH of 7, which indicates a balance between acidity and alkalinity.
42. Which of the following is a strong acid?
Sulfuric acid is considered a strong acid due to its ability to completely dissociate in water, making it highly corrosive.
43. Which of the following is a weak acid?
Citric acid is a weak acid commonly found in citrus fruits like lemons and oranges.
44. What happens when an acid is added to a base?
When an acid reacts with a base, they undergo a neutralization reaction, forming a salt and water.
45. Which of the following is a common indicator used to determine acidity or alkalinity?
Litmus paper is a commonly used indicator that changes color based on the pH of the solution, providing a quick and easy way to determine acidity or alkalinity.
46. What is the pH value of an acid?
The pH value of an acid is less than 7. In this case, a pH of 2 indicates a strong acid.
47. Which of the following substances is a base?
Bleach is a common household base due to its high pH value. The other options are acidic substances.
48. What color does red litmus paper turn in the presence of an acid?
Red litmus paper turns red when it comes in contact with an acid, indicating its acidic nature.
49. Which of the following is a characteristic of a base?
Bases have a bitter taste, unlike acids which have a sour taste. This is one way to differentiate between the two.
50. Which of the following is a strong acid?
Sulfuric acid is considered a strong acid due to its ability to completely dissociate in water, making it highly corrosive.
51. What is the effect of adding a base to an acidic solution?
Adding a base to an acidic solution results in neutralization, where the acidity decreases as the base reacts with the acid to form water and a salt.
52. Which of the following is not a property of acids?
Bitter taste is not a property of acids. Acids are known for their sour taste, ability to conduct electricity, and ability to turn blue litmus paper red.
53. What is the pH value of a neutral solution?
A pH value of 7 indicates a neutral solution, where the concentration of H+ ions is equal to the concentration of OH- ions.
54. Which of the following is a weak base?
Ammonia is considered a weak base as it does not dissociate completely in water, resulting in fewer OH- ions in solution compared to a strong base.
55. What happens to the pH of a solution as it becomes more acidic?
As a solution becomes more acidic, the concentration of H+ ions increases, leading to a decrease in pH value below 7.