Compressed Natural Gas (CNG) is

Options

A. propane
B. methane
C. ethane
D. butane.

Explanation

**Step-by-Step Solution:**

1. **Understanding Compressed Natural Gas (CNG):**
- CNG is a type of fuel that is used as an alternative to petrol and diesel. It is primarily composed of gases that are compressed to be stored and used as fuel.

2. **Identifying the Components of CNG:**
- The question provides four options: A) Propane, B) Methane, C) Ethane, D) Butane. These are all types of alkanes, which are hydrocarbons.

3. **Analyzing the Options:**
- **Propane (C3H8)**: A three-carbon alkane.
- **Methane (CH4)**: A one-carbon alkane and the simplest form of alkane.
- **Ethane (C2H6)**: A two-carbon alkane.
- **Butane (C4H10)**: A four-carbon alkane.

4. **Determining the Major Component of CNG:**
- Among these options, the major component of CNG is known to be methane. This is because CNG is primarily composed of methane gas.

5. **Understanding the Environmental Benefits:**
- CNG is considered a better alternative to petrol and diesel due to its lower adverse effects on the environment. Methane burns more effectively and efficiently, resulting in less pollution compared to other fossil fuels.

6. **Conclusion:**
- Based on the analysis, the correct answer to the question "Compressed Natural Gas (CNG) is" is B) Methane.

**Final Answer:**
B) Methane

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