Practice Acids And Bases In The Laboratory (2.1.1)

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9 questions

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6 sample questions

Question 1.
What color does blue litmus paper turn when placed in an acidic solution?
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Remember the primary color coding of litmus paper.
Question 2.
Name one olfactory indicator mentioned in the section.
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Think about the experiment with chopped vegetables.
3Question 3.
What happens to red litmus paper in a basic solution?
- Turns blue
- Stays red
- Turns yellow
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Think about the color change definitions.
4Question 4.
Is an olfactory indicator effective for testing pH?
- True
- False
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Recall the onion experiment.
Question 5.
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?
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Consider the behaviors of indicators in both acidic and basic environments.
Question 6.
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?
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Think about the interaction between chemical properties and smells.

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