Which of these is not a characteristic of petroleum?

Options

A. It is also called black gold.
B. it is also called crude oil.
C. It is an odourless liquid.
D. It is dark coloured.

Answer

To determine which of the options is not a characteristic of petroleum, we can analyze the common characteristics associated with petroleum.

### Step-by-Step Solution:

1. **Understanding Petroleum**:
- Petroleum is a naturally occurring liquid found beneath the Earth's surface, composed of hydrocarbons and other organic materials. It is commonly referred to as "crude oil" and is known for its various uses, including fuel and the production of chemicals.

2. **Identifying Characteristics of Petroleum**:
- **Black Gold**: Petroleum is often called "black gold" due to its high economic value.
- **Odorless**: This is a common misconception; petroleum does have a distinct odor, especially when refined.
- **Dark Color**: Petroleum is typically dark in color, which is a characteristic feature.
- **Liquid State**: Petroleum is a liquid at room temperature.

3. **Evaluating the Options**:
- If one of the options states that petroleum is "odorless," this would be incorrect because petroleum does have a noticeable smell.
- The other characteristics, such as being dark in color and referred to as "black gold," are indeed true.

4. **Conclusion**:
- The option that states petroleum is "odorless" is not a characteristic of petroleum. Therefore, this option is the correct answer to the question.

### Final Answer:
The characteristic that is not true about petroleum is that it is "odorless."

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