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प्रश्न
Coal tar is a mixture of various substances.
पर्याय
True
False
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उत्तर
This statement is true.
Explanation:
Coal tar is a black, thick liquid with an unpleasant smell. It is a mixture of about 200 substances. Products obtained from coal tar are used as starting materials for manufacturing various substances used in everyday life and industry, such as synthetic dyes, drugs, explosives, perfumes, plastics, paints, photographic materials, roofing materials, etc.
संबंधित प्रश्न
What are the different types of coal?
Anthracite is known as the highest-grade coal. Give reason.
Coal is processed in industries to get some useful products. Which of the following is not obtained from coal?
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Loca is obtained from mines.
The black thick liquid with ______ smell is known as coal tar.
Name the products obtained and their uses when coal is processed in industry.
Which one among the following is an extremely strong but lightweight material is used in mountain bikes and tennis rackets?
______ coal is black and dull coal.
Activated carbon, used in filters for water and air purification and in ______ machines is obtained from coal.
What is deep mining?
