Advertisements
Advertisements
प्रश्न
What are the different types of coal?
Advertisements
उत्तर
- Coal is a fossil fuel. It contains carbon, hydrogen and oxygen. It also contains nitrogen, phosphorus and sulphur. It occurs in the solid state.
- Coal is classified on the basis of its carbon content into:
- Peat: It has a high water content and less than 60% carbon content.
- Lignite: Lignite is a transformed form of peat and has around 60 to 70% of carbon content.
- Bituminous: It is the most commonly found variety of coal in India is bituminous and has a carbon content of 70-90%.
- Anthracite: It has a carbon content of more than 95% which makes it suitable for iron smelting.
APPEARS IN
संबंधित प्रश्न
Coke is almost pure form of carbon.
Describe characteristics of coke.
Explain the following.
Petrol, diesel, and coal are fossil fuels.
Explain the different types of coal.
Coal is formed from the remains of
Which substance is formed by the carbonisation of dead vegetation?
Naphthalene balls are obtained from coal tar and are used as
When heated in air, coal burns and produces mainly ______ gas.
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 ______.
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.
Write True/False against the following statement.
Under high temperature and pressure, dead plants get slowly converted to coal.
When lignite becomes darker and harder over time ______ coal is formed.
Activated carbon, used in filters for water and air purification and in ______ machines is obtained from coal.
Explain the destructive distillation of Coal.
What are the uses of coal?
