Answer: Litmus paper is a type of pH indicator that changes color according to the acidity or basicity of a substance. In this experiment, we will observe the color changes of red and blue litmus paper when they are dipped in acid and base solutions.
Step-by-step explanation:
Observations:
1. When red litmus paper is dipped in an acid solution, it remains red. This indicates that the solution is acidic.
2. When blue litmus paper is dipped in an acid solution, it turns red. This indicates that the solution is acidic.
3. When red litmus paper is dipped in a base solution, it turns blue. This indicates that the solution is basic.
4. When blue litmus paper is dipped in a base solution, it remains blue. This indicates that the solution is basic.
Thus, litmus paper is a simple and useful tool for determining the acidity or basicity of a substance.
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