5 - Indicators
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Practice Questions
Test your understanding with targeted questions
What color does litmus paper turn in an acidic solution?
💡 Hint: Think of how a warning light can indicate danger.
How does phenolphthalein change color in a basic solution?
💡 Hint: Consider the happy color of many flowers.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does litmus paper turn in a basic solution?
💡 Hint: Think about the primary color associated with 'base'.
True or False: Phenolphthalein turns pink in acidic solutions.
💡 Hint: One color represents acid, the other base.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Explain the pH range in which phenolphthalein is effective, and why it would not work well for very strong acids.
💡 Hint: Consider its color change range and the nature of strong acids.
Design a comparative study using litmus paper and phenolphthalein to determine pH levels of three household solutions. Present your findings.
💡 Hint: Think of commonly used household items that differ in acidity.
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