Question

How is the component of coal obtained. State their importance also.

Answer 1

hey mate here is ur ans
the components of coal are obtained by the destructive distillation of coal
means heating at high presure and temperature in limited air and condensing the vapors formed
the components obtained are
1-coke-it ia used as a fuel
2- coal gas-its a gud gas fuel in domestic and industrial purposes
3- gas carbon -it is used to make carbon electrodes
4-coal tar -used to make paint pesticides insecticide naphthalene balls



hope it helps you

Answer 2

Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content, and, since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine a pit, and the above-ground structures the pit head. In Australia, "colliery" generally refers to an underground coal mine. In the United States, "colliery" has been used to describe a coal mine operation but nowadays the word is not commonly used.

Coal mining has had many developments over the recent years, from the early days of men tunnelling, digging and manually extracting the coal on carts, to large open cut and long wall mines. Mining at this scale requires the use of draglines, trucks, conveyors, hydraulic jacks and shearers.