Aliphatic and Aromatic Hydrocarbons

Benzene

Aromatic hydrocarbons are also known as arenes. Most of such compounds are found to contain benzene ring. Aromatic compounds containing benzene rings are named benzenoids and those which do not contain a benzene ring are called non-benzenoids.

The formula of benzene is C6H6. F. A. Kekule in 1
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Preparation of Alkanes

Hydrocarbons play a vital role in our daily lives. Hydrocarbons contain only hydrogen and carbon atoms. Depending upon the type of bonds present between carbon atoms, hydrocarbons are classified into different categories; saturated hydrocarbon, unsaturated hydrocarbon and aromatic hydrocarbon. Satur ....Read More

Preparation of Alkenes

Alkenes are unsaturated hydrocarbons containing at least one carbon carbon double bond. Ethene, C2H4, is the first member of the alkene series. Ethene is also known as ethylene. For writing IUPAC name of simple alkene, replace terminal ane of corresponding alkane by suffix ene. Carbon–carbon doubl ....Read More

Preparation of Alkynes

Oxyacetylene torches use a mixture of oxygen and acetylene gas. Acetylene or Ethyne is an alkyne. Alkynes are unsaturated hydrocarbons containing at least one triple bond between two carbon atoms. Ethyne, C2H2, is the first member of the alkyne series. In Acetylene system, the higher alkynes are reg ....Read More

Properties of Alkanes

Natural gas mainly contains methane gas, which is an alkane. Due to weak van der Waals forces, the first four members of alkanes, C1 to C4 are gases, C5 to C17 are liquids and those containing 18 carbon atoms or more are solids. Alkanes are colourless and odourless. They are soluble in non-polar sol ....Read More

Properties of Alkenes

The first three alkenes namely ethene, propene and butene are gases at ordinary temperature. The alkenes containing 5 to 18 carbon atoms are liquids while the higher members of the family are solids. All the alkenes are colourless and odourless except ethene. Ethene is a colourless gas with a faint ....Read More

Properties of Alkynes

Important physical properties of alkynes are physical state, colour and odour, melting and boiling points, solubility and density. The first three alkynes, ethyne, propyne and butyne are gases at ordinary temperature. The alkynes containing 5 to 12 carbon atoms are liquids while the higher members o ....Read More

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