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Jouer Froggy Jumps
1. What does pH stand for?
A
Pressure of Hydrogen
B
Potential of Hydrogen
C
Power of Hydrogen
2. What is the pH range of acidic solutions?
A
7 to 14
B
6.9 to 10
C
0 to 6.9
3. What is the pH of pure water?
A
7
B
8
C
6
4. Which substance has a pH greater than 7?
A
Vinegar
B
Lemon juice
C
Baking soda
5. What does a pH of 14 indicate?
A
Neutral solution
B
Weakly acidic solution
C
Strongly basic solution
6. Which pH level is considered neutral?
A
8
B
7
C
6
7. What is the effect of pH on enzyme activity?
A
It has no effect.
B
It only affects temperature.
C
It can affect the enzyme's shape and function.
8. Which of the following is a common pH indicator?
A
Barometer
B
Litmus paper
C
Thermometer
9. What is the pH of stomach acid?
A
1.5 to 3.5
B
7
C
5
10. How does pH affect aquatic life?
A
It has no impact.
B
It only affects plant growth.
C
It influences the survival of fish and other organisms.