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प्रश्न
Coal tar is a mixture of various substances.
विकल्प
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
Fossil fuels can be made in the laboratory.
Describe characteristics of coke.
When heated in air, coal burns and produces mainly ______ gas.
Coal tar is a black, thick ______ with an ______ smell.
The black thick liquid with ______ smell is known as coal tar.
During the processing of coal to get coke, coal tar and ______ are also obtained.
Coal reserves are said to be enough to last for another hundred years. Do you think we need to worry in such case? Why or why not?
Which one among the following is an extremely strong but lightweight material is used in mountain bikes and tennis rackets?
______ is used to make face packs and cosmetics.
Coal helps to create alumina refineries.
