Methodical recommendation:
Theory
| Number | Name | Description |
|---|---|---|
| 1. | Acid–base indicators | In this lesson, we will learn to identify substances as acidic, basic, or neutral using litmus tests and preparation of limewater. |
Practice Questions
| Number | Name | Type | Difficulty | Marks | Description |
|---|---|---|---|---|---|
| 1. | Acid-base indicator | Other | easy | 2 m. | The student has multiple choice type question about the safe identification of acids and bases. As an outcome of the exercise, the student will learn about the mentioned concepts. |
| 2. | Litmus - A natural indicatior | Other | medium | 2 m. | An exercise that focuses on the preparation of litmus paper and its uses. The student has to choose the correct answers. As an outcome of this exercise, the student will learn about the mentioned concepts. |
| 3. | litmus paper | Other | easy | 1 m. | The student has multiple choice type question about the safe identification of acids and bases. As an outcome of the exercise, the student will learn about the mentioned concepts. |
| 4. | Litmus as an indicator | Other | medium | 2 m. | The student has to write short answer, and the questions deal with the litmus as acid-base indicator. As an outcome of this exercise, the student will learn about the mentioned concepts. |
| 5. | Activity - Effect of litmus paper on different substances | Other | medium | 3 m. | An exercise that focuses on the effect of litmus in determining the nature of the substances. The student has to choose the correct answers. As an outcome of this exercise, the student will learn about the mentioned concepts. |
| 6. | Preparation of lime water | Other | hard | 3 m. | The student has question the steps to balance a chemical equation. As an outcome of the exercise, the student will learn about the mentioned concepts. |
| 7. | Nature of limewater | Other | hard | 2 m. | The student has to write short answer, and the questions deal with the chemical properties of acids and bases. As an outcome of this exercise, the student will learn about the mentioned concepts. |
| 8. | Understanding limewater | Other | easy | 2 m. | An exercise that is based on the properties of acid, base and indicator the student has to select the correct answer. |
| 9. | Litmus and lime water | Other | easy | 2 m. | The student has to choose the correct answer for solutions. |