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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What do bases produce when dissolved in water?
💡 Hint: Think about what makes a solution basic.
Question 2
Easy
What color does red litmus paper turn when dipped in a base?
💡 Hint: Remember the litmus paper test!
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 is the pH range for bases?
- 0-7
- 7-14
- 14-20
💡 Hint: Think about how acids compare to bases on the pH scale.
Question 2
True or False: Bases turn blue litmus paper red.
- True
- False
💡 Hint: Remember the litmus paper color change for acids and bases.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A factory discharges a large volume of waste that has a very high pH into a local river. What environmental impacts could occur and how could a base neutralize an acid spill in nature?
💡 Hint: Consider the balance of pH levels and the role of acidity in aquatic environments.
Question 2
During a science experiment, a student accidentally spills hydrochloric acid on their skin. What role does a base play in neutralizing this hazard and how should it be applied safely?
💡 Hint: Think about safety protocols and the properties of acids and bases when handling spills.
Challenge and get performance evaluation