Which insecticide is obtained form the roots of Derris elliptic ?

Options

A. Pyrethrum
B. Rotenone
C. Cinerin
D. Nicotime

Answer

**Step-by-Step Solution:**

1. **Identify the Plant**: The question asks for the insecticide obtained from the roots of the plant Derris elliptica.

2. **Recognize the Insecticide**: The specific insecticide derived from Derris elliptica is called Rotenone.

3. **Characteristics of Rotenone**: Rotenone is described as an odorless, colorless, and crystalline chemical compound. It is known for its broad-spectrum use as an insecticide and pesticide.

4. **Usage of Rotenone**: This insecticide is utilized to control various pests, including insects and certain fish species, making it a versatile pesticide.

5. **Source of Rotenone**: While primarily obtained from the roots of Derris elliptica, Rotenone can also be extracted from the seeds and stems of other plants, including the Jicama vine plant and some members of the Fabaceae family.

6. **Classification of Rotenone**: Rotenone belongs to a class of chemical compounds known as Rotenoids, which are characterized by their insecticidal properties.

7. **Conclusion**: Therefore, the insecticide obtained from the roots of Derris elliptica is Rotenone.

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