Advertisements
Advertisements
प्रश्न
Anthracite is known as the highest-grade coal. Give reason.
टीपा लिहा
Advertisements
उत्तर
- Anthracite is the highest grade coal.
- It has a very light weight and the highest heat content.
- Anthracite coal is very hard, deep blacks, and shiny.
- It contains 86-97% carbon and has a heating value slightly higher than bituminous coal.
- It bums longer with more heat and less dust.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Fossil fuels are ______, ______ and ______.
Explain why fossil fuels are exhaustible natural resources.
Coal tar is a mixture of various substances.
Naphthalene balls are obtained from coal tar and are used as
When heated in air, coal burns and produces mainly ______ gas.
Coal tar is a black, thick ______ with an ______ smell.
During the processing of coal to get coke, coal tar and ______ are also obtained.
Write the characteristics and some important uses of coal.
Activated carbon, used in filters for water and air purification and in ______ machines is obtained from coal.
Coal helps to create alumina refineries.
