The pH scale Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. Which pH value shows the strongest acid?
- A. 1
- B. 5
- C. 7
- D. 13
2. A solution has pH 3. Another has pH 5. How do their hydrogen ion concentrations compare?
- A. pH 3 has 2 times more
- B. pH 3 has 100 times more
- C. pH 5 has 100 times more
- D. They are the same
3. Which is the best way to find a pH of 6.8 accurately?
- A. Litmus paper
- B. Universal indicator paper
- C. Red cabbage juice
- D. pH probe
4. What happens to the pH of hydrochloric acid when it is diluted with water?
- A. It falls
- B. It stays the same
- C. It rises
- D. It becomes 14
5. Which pH is alkaline?
- A. 3
- B. 7
- C. 6.5
- D. 10