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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What color does blue litmus paper turn in the presence of an acid?
💡 Hint: Think about what happens to the color of the paper.
Question 2
Easy
What is a common example of a weak acid?
💡 Hint: Consider fruits with a sour taste.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What happens to blue litmus paper when in contact with an acid?
- Turns red
- Turns blue
- Stays the same
💡 Hint: Think about the opposite colors for bases.
Question 2
True or False: Neutralization reactions always produce hydrogen gas.
- True
- False
💡 Hint: Recall what products are formed in neutralization.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
In a laboratory, a student mixed equal volumes of hydrochloric acid (HCl) with sodium hydroxide (NaOH). Describe the reaction and identify the products formed. What would be the expected pH after the reaction?
💡 Hint: Consider what happens in a neutralization reaction.
Question 2
If the pH of an unknown solution is found to be 4, what can you infer about its acidity? What would happen if you diluted it with water? Explain in terms of H$^{+}$ concentration.
💡 Hint: Remember how dilution affects concentration.
Challenge and get performance evaluation