CNG is better than petrol/ diesel, since

Options

A. CNG burns more efficiently
B. CNG is cheaper than petrol
C. CNG cannot be alterated
D. All of these

Answer

To answer the question "CNG is better than petrol/diesel, since," we need to evaluate the provided options based on the characteristics of Compressed Natural Gas (CNG) compared to petrol and diesel.

### Step-by-Step Solution:

1. **Understanding CNG**:
- CNG stands for Compressed Natural Gas. It is a cleaner alternative to petrol and diesel, primarily composed of methane.

2. **Evaluating Option 1**:
- **CNG burns more efficiently**:
- CNG burns more completely than petrol and diesel, producing fewer pollutants and leaving no residue. This means it is more efficient in terms of combustion.
- **Conclusion**: This option is correct.

3. **Evaluating Option 2**:
- **CNG is cheaper than petrol**:
- Generally, CNG is less expensive than petrol and diesel, making it a more economical choice for consumers.
- **Conclusion**: This option is also correct.

4. **Evaluating Option 3**:
- **CNG cannot be adulterated**:
- Unlike petrol and diesel, which can be adulterated with cheaper substances (like kerosene), CNG is a pure fuel that does not undergo such adulteration.
- **Conclusion**: This option is correct as well.

5. **Evaluating Option 4**:
- **All of these**:
- Since options 1, 2, and 3 are all correct, option 4, which states that all of these are correct, must also be correct.
- **Conclusion**: This option is correct.

### Final Answer:
CNG is better than petrol/diesel since **all of the above options are correct**: CNG burns more efficiently, is cheaper than petrol, and cannot be adulterated.