Question

Household gaseous fuel (LPG) mainly consists:
A. ${\text{C}}{{\text{H}}_4}$
B. ${{\text{C}}_2}{{\text{H}}_2}$
C. ${{\text{C}}_2}{{\text{H}}_4}$
D. ${{\text{C}}_4}{{\text{H}}_{10}}$

Answer 1

Hint: LPG is a mixture of propane and butane. Propane is 30% and butane is 70%. It is flammable so that they are used in households.

Complete step by step solution:
Liquefied petroleum gas is abbreviated as LPG. It is generally used as household fuel. It is a composition of hydrocarbons which is flammable thereby used for cooking, in vehicles, and heating. There are many fuels which damage the ozone layer. LPG is a replacement of such compounds. It is referred to as autogas in vehicles. LPG mainly consists of butane ${{\text{C}}_4}{{\text{H}}_{10}}$and propane ${{\text{C}}_3}{{\text{H}}_8}$. Butane is more in amount than propane.
LPG is a combination of butane and propane. At normal conditions, LPG exists as vapor. When applied pressure, it changes to liquid state. In households, it is stored under pressure so that it changes to a dense liquid. Huge volume of gas can be stored in a small volume. It is known as auto gas and it is the cleanest fuel alternative in the world. LPG are stored in bulk cylinders and kept underground.
LPG is prepared from natural gas processing and crude oil refining.
It is used for:
Cooking, heating
Fuel for taxis, vans etc.
Agriculture sector
Manufacture of petrochemicals
Electricity generation
Welding and cutting
Hence option D is correct.
Additional information:
Properties of LPG:
Flammable and heavier than air.
Light in weight
Non-corrosive
High energy fuel

Note: There are dangers for LPG also. If the mixture of LPG is proper and if there is an ignition source, there is a chance of explosion. There would be a suffocation when LPG is combined with air. Odorant is combined with LPG so that the leakage can be easily determined.