CHEMISTRY [2 Mark Question Answer]

• Electricity Generation. Power generation is the primary use for coal worldwide....
• Metal Production. Metallurgical (coking) coal is a key ingredient in steelmaking.....
• Cement Production. Coal is used as a key energy source in cement production....
• Gasification and Liquefaction
• Chemical Production

Coal is formed when dead plant matter submerged in swamp environments is subjected to the geological forces of heat and pressure over hundreds of millions of years. Over time, the plant matter transforms from moist, low-carbon peat, to coal, an energy and carbon-dense black or brownish-black sedimentary rock

• use of coke-Coke is most commonly used as a fuel for fires, furnaces, and blacksmithing
• use of gas Carbon - It is also a good conductor of heat and electricity, similar to graphite. Applications include battery plates, in arc lamps, and coal gas.
• use of coal tar- coal tar have long been used to treat various skin conditions, such as eczema
• use of ammonia solutions- ammonia produced by industry is used in agriculture as fertilizer

• Charcoal exists in a solid amorphous state.
• The colour of the charcoal powder is black.
• Charcoal is a black porous solid that consists of carbon.
• It is a low-density compound.
• Charcoal shows low mechanical strength properties.
• The structure of carbon charcoal shows a large surface area.

When wood is heated with cow dung and CO2 then the residue is charcoal. When wood is boiled in water followed by evaporation, the residue is charcoal. When wood is burnt in a limited supply of oxygen and water until volatile materials are removed, the residue is charcoal