Advertisements
Advertisements
प्रश्न
Name the products obtained and their uses when coal is processed in industry.
Advertisements
उत्तर
When coal is strongly heated in the absence of air in closed retorts, various useful products are obtained. These are coke, coal tar and coal gas. Uses of coke It is used in the manufacture of steel and in the extraction of many metals. It acts as a fuel and it is a better fuel than coal. Uses of coal tar The various compounds obtained from coal tar are used as starting materials for manufacturing a large number of substances used in everyday life and in industry like synthetic dyes, drugs, explosives, perfumes, plastics, paints, photographic materials, roofing materials, etc. Naphthalene balls used to repel moths and other insects are also obtained from coal tar. Uses of coal gas It is used as a fuel in many industries situated near the coal processing plants.
APPEARS IN
संबंधित प्रश्न
Explain the following.
Petrol, diesel, and coal are fossil fuels.
Coal is processed in industries to get some useful products. Which of the following is not obtained from coal?
Naphthalene balls are obtained from coal tar and are used as
Coal tar is a black, thick ______ with an ______ smell.
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Loca is obtained from mines.
The slow process of conversion of dead vegetation into coal is called ______.
During the processing of coal to get coke, coal tar and ______ are also obtained.
Write True/False against the following statement.
Under high temperature and pressure, dead plants get slowly converted to coal.
What is deep mining?
What are the uses of coal?
