Which one is a neem product used as insect replellent?

Options

A. Rotenone
B. Azadirachtin
C. Parathion
D. Endrin

Answer

To solve the question "Which one is a neem product used as an insect repellent?" we will analyze the options provided: rotinone, azadirachtin, parathion, and andrine.

### Step-by-Step Solution:

1. **Analyze the First Option: Rotinone**
- Rotinone is a broad-spectrum insecticide and pesticide derived from various plants, primarily the jicama vine plant.
- Since it is not derived from the neem tree (Azadirachta indica), it is not a neem product.
- **Conclusion**: Rotinone is not the correct answer.

2. **Analyze the Second Option: Azadirachtin**
- Azadirachtin is a yellow-green powder that belongs to the limnoid group.
- It is specifically obtained from the neem tree (Azadirachta indica).
- Azadirachtin is known for its potent insect-repelling properties, making it a natural insect repellent.
- **Conclusion**: Azadirachtin is a neem product and is the correct answer.

3. **Analyze the Third Option: Parathion**
- Parathion is an organophosphate insecticide that is highly toxic to both target and non-target organisms, including humans.
- It is a synthetic chemical and not derived from any plant, particularly not from neem.
- **Conclusion**: Parathion is not a neem product and is not the correct answer.

4. **Analyze the Fourth Option: Andrine**
- Andrine is classified as an organochloride insecticide.
- Similar to parathion, it is a synthetic chemical and not derived from neem.
- **Conclusion**: Andrine is also not a neem product and is not the correct answer.

### Final Answer:
The correct answer is **Azadirachtin** (Option B), as it is the only neem product listed that is used as an insect repellent.

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