1. Substances that produce hydrogen ions (H⁺) in aqueous solution are called:
2. Substances that produce hydroxide ions (OH⁻) in aqueous solution are called:
3. Which of the following is a strong acid?
4. Which of the following is a base?
5. The pH value of an acidic solution is:
6. The pH value of a basic solution is:
7. A substance that changes color in acidic or basic solutions is called:
8. Which indicator turns red in acidic solution?
9. Turmeric turns which color in a basic solution?
10. Which gas is produced when acids react with metals?
11. When acids react with carbonates, they produce:
12. A salt is formed when:
13. The reaction between an acid and a base is called:
14. Which of the following is a salt?
15. Baking soda is chemically known as:
16. Washing soda is chemically known as:
17. The taste of acids is generally:
18. The taste of bases is generally:
19. Which acid is present in vinegar?
20. Which acid is present in lemon?
