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प्रश्न
What are the uses of coal?
State two uses of coal.
Give two uses for the following:
coal
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उत्तर
- Coal is used as fuel in factories and homes.
- Coal is used to obtain coke, coal gas and coal tar.
- Coal is used in thermal power plants for the generation of electricity.
Notes
Students should refer to the answer according to their questions.
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संबंधित प्रश्न
Describe how coal is formed from dead vegetation. What is this process called?
Fossil fuels can be made in the laboratory.
Coke is almost pure form of carbon.
Explain why fossil fuels are exhaustible natural resources.
Coal tar is a mixture of various substances.
Anthracite is known as the highest-grade coal. Give reason.
Which substance is formed by the carbonisation of dead vegetation?
When heated in air, coal burns and produces mainly ______ gas.
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 ______.
Write the characteristics and some important uses of coal.
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?
When lignite becomes darker and harder over time ______ coal is formed.
______ coal is black and dull coal.
______ is used to make face packs and cosmetics.
Coke is used in the preparation of dyes, explosives, paints synthetic fibers, and pesticides.
Coal is also known as black diamond owing to its precious nature.
What is deep mining?
Explain the destructive distillation of Coal.
