Correct option is B
The correct answer is Methane emitting.
· Cooking gas is also called LPG (Liquefied Petroleum Gas).
· Liquefied petroleum gas (LPG) is a colourless, odourless liquid that readily evaporates into a gas.
· LPG (cooking gas) is a mixture of Butane and Propane.
· LPG (cooking gas) is a flammable mixture of hydrocarbon gases that include propane, butane, isobutene, and mixtures of the three LPG gases.
· On liquefaction, petroleum gas changes into a liquid, which is called Liquefied Petroleum Gas (LPG).
· The main constituent of LPG is Butane, though it contains smaller amounts of Ethane and Propane as well.
· LPG (cooking gas) is stored in steel vessels ranging from small BBQ gas bottles to larger gas cylinders and tanks.
· When a valve provided in the cylinder is opened with the help of a regulator, due to a decrease in pressure, LPG changes into a vapour.
· This vapour flows to the burners through a rubber tubing attached to the regulator.
· They are commonly used for generating heat for homes.
· Examples include heating, hot water, cooking, including boilers, etc.
Information Booster
Characteristic of LPG:
· It is a clean fuel.
· It has a high calorific value.
· It burns with a blue flame.
· It is composed of propane and butane.
· It is easily transported in a cylinder or tanks.
· It is a good substitute for petrol in spark-ignition engines.