2.1.1 - Acids and Bases in the Laboratory
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What color does blue litmus paper turn when placed in an acidic solution?
💡 Hint: Remember the primary color coding of litmus paper.
Name one olfactory indicator mentioned in the section.
💡 Hint: Think about the experiment with chopped vegetables.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What happens to red litmus paper in a basic solution?
💡 Hint: Think about the color change definitions.
Is an olfactory indicator effective for testing pH?
💡 Hint: Recall the onion experiment.
1 more question available
Challenge Problems
Push your limits with advanced challenges
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.
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.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.