Practice Common Indicators and Their Ranges - 2.5.2 | Unit 8: Acids and Bases | IB Grade 11: Chemistry
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2.5.2 - Common Indicators and Their Ranges

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What color does Methyl Red turn in basic solutions?

💡 Hint: Think about its pH range.

Question 2

Easy

What is the range of Bromothymol Blue?

💡 Hint: Remember the transition from yellow to blue.

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 color does Phenolphthalein turn at a basic pH?

  • Colorless
  • Yellow
  • Pink

💡 Hint: Consider how it appears in acidic conditions.

Question 2

True or False: Methyl Red changes from yellow in acidic solutions.

  • True
  • False

💡 Hint: Think about the color transitions.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You are conducting a titration with a weak acid and a strong base. Which indicators would be more appropriate: Methyl Red, Phenolphthalein, or Bromothymol Blue?

💡 Hint: Consider the equivalence point pH of the titration.

Question 2

If you have a solution that is expected to reach pH 5.5 at the equivalence point, which would be the best choice of indicator?

💡 Hint: Look for the indicator that covers pH intervals around 5.5.

Challenge and get performance evaluation