Heroin or brown sugar is:

Options

A. brown, odourless, sweet, crystalline compound
B. brown, odourless, sweet, amorphous compound
C. white, odourless, bitter, crystalline compound
D. white, odourless, bitter, amorphous compound

Answer

### Step-by-Step Solution:

1. **Identify the Substance**: The question asks about heroin or brown sugar. Heroin is an opioid drug derived from morphine, which itself is a natural substance extracted from poppy seeds.

2. **Chemical Composition**: Heroin is chemically known as diacetylmorphine. It is synthesized from morphine, which is a natural alkaloid found in the opium poppy.

3. **Physical Properties**: Heroin is characterized as a white crystalline substance. This crystalline form is due to its chemical structure, which allows it to form a crystal lattice.

4. **Effects on the Body**: When heroin enters the brain, it binds to opioid receptors, leading to a slowdown of the nervous system. This results in decreased pain perception and a reduction in heart rate.

5. **Taste and Smell**: Heroin is typically described as being odorless and having a bitter taste, similar to that of morphine. This is important in identifying the substance.

6. **Conclusion**: Based on its characteristics, heroin or brown sugar can be identified as a white crystalline compound that is odorless and has a bitter taste.

### Final Answer:
Heroin or brown sugar is a white crystalline compound that is odorless and has a bitter taste.

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