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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.
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संबंधित प्रश्न
Describe how coal is formed from dead vegetation. What is this process called?
Describe characteristics of coke.
Anthracite is known as the highest-grade coal. Give reason.
When heated in air, coal burns and produces mainly ______ gas.
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Write True/False against the following statement.
Under high temperature and pressure, dead plants get slowly converted to coal.
Write the characteristics and some important uses of coal.
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What is deep mining?
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