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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 when placed in an acidic solution?
💡 Hint: Remember the primary color coding of litmus paper.
Question 2
Easy
Name one olfactory indicator mentioned in the section.
💡 Hint: Think about the experiment with chopped vegetables.
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 red litmus paper in a basic solution?
- Turns blue
- Stays red
- Turns yellow
💡 Hint: Think about the color change definitions.
Question 2
Is an olfactory indicator effective for testing pH?
- True
- False
💡 Hint: Recall the onion experiment.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have a solution that is unknown. You test it with both red and blue litmus paper: red remains red, while blue turns pink. What can you conclude about the solution?
💡 Hint: Consider the behaviors of indicators in both acidic and basic environments.
Question 2
In an experiment, you find that the smell of vanilla essence becomes stronger when added to a certain solution. How can you deduce the nature of the solution based on your observations?
💡 Hint: Think about the interaction between chemical properties and smells.
Challenge and get performance evaluation