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Coal is primarily made up of carbon, with small amounts of hydrogen, sulfur, oxygen, and nitrogen. It also contains minerals and trace elements such as iron, calcium, and aluminum. The exact composition of coal can vary depending on the type of coal and the specific location where it is mined.
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What are the main kinds of carbon compounds present in coal and petroleum?
The main kinds of carbon compounds present in coal are hydrocarbons, aromatic compounds, and coal tar. In petroleum, the main carbon compounds are alkanes, cycloalkanes, alkenes, and aromatic compounds like benzene, toluene, and xylene.
What is coal tar composition?
Coal tar is a complex mixture of organic compounds derived from the distillation of coal. It contains various hydrocarbons, phenolic compounds, and heterocyclic compounds. The specific composition of coal tar can vary depending on the source and method of production.
Why is coal a compound?
Coal is not a compound, but rather a complex mixture of organic compounds and inorganic minerals. It is formed from the remains of plants that have been subjected to heat and pressure over millions of years. The main organic compounds in coal are carbon, hydrogen, and oxygen.
Why does coal smell so bad?
Coal contains sulfur compounds that produce a foul odor when burned. These sulfur compounds are released as sulfur dioxide when coal is burned, contributing to air pollution and causing the characteristic smell associated with coal combustion. Additionally, impurities in coal such as volatile organic compounds can also contribute to the unpleasant smell when coal is burned.
Is coal a pure substance?
No, coal is not a pure substance. It is composed of a mixture of organic compounds such as carbon, hydrogen, sulfur, and nitrogen, along with mineral impurities.
