Question

Which of the following is a non-polluting fuel used in vehicles?
A. Petrol
B. Diesel
C. LPG
D. Kerosene

Answer 1

Hint: Natural or non-polluting fuels are those which do not release the polluting emissions that are harmful for our environment like Methane. These fuels are renewable and are obtained from the compost or the fossil fuels. Another example is LPG. This is low in cost.

Complete Answer:
- Non-polluting fuel does not affect our environment. These fuels are low in cost. Moreover, natural fuels are considered as clean fuels. They can be used directly for burning. Hence, they are easily available because they are renewable and can be obtained from the compost. Therefore, these natural gases are stored under high pressure.
- Petrol which is also called crude oil is a fossil fuel. It is produced from the fossils of animals and plants, algae, and bacteria. Its reservoirs can be found beneath land or the ocean floor. Whereas, Diesel is formed from the fractional distillation of crude oil between 200 degree Celsius and 350 degree Celsius.
- However, Kerosene is a flammable liquid mixture and obtained from the distillation of the crude oil. But, LPG is a natural gas production process. It is extracted from deep within the Earth and can contain Ethane, Propane, Pentane and Butane. LPG has a high heating or caloric value which means it provides a high amount of heat in a limited lifetime as an energy source.
- A virtual absence of Sulphur is also present in LPG, contributing to cleaner burning. LPG is a convenient portable energy source typically sold in gas cylinders that is easy to transport and store.

Hence, LPG is a right answer because it is of consistent quality for the industry. That means it's reliable and robust when it's used in forklifts or industrial boilers for gas engines. Moreover, it does not emit any virtual black carbon. Thus, considered as clean and natural gas.

Note: LPG is a reliable source of energy which is used in homes and at business. In many cities of India and in Countries like Australia, it is delivered through pipelines. It helps to reduce outdoor and urban air pollution. It generates less $CO_2$ than Coal.