Preparing Alkene

Preparing Alkene Alkene can be prepared by dehydration of alcohol craking of alkane Dehydration of Alcohol When alcohol is heated, it will decompose to form alkene and water. For example, heating ethanol will produce ethene, heating propanol will produce propene, and so on. This process is called dehydration of alcohol. Dehydration of Ethanol  C2H5OH → C2H4 + … Read more

Physical Properties of Alkenes

Physical Properties of the Alkenes Alkenes are covalent compounds that consist of simple molecules. The molecules of alkenes are held together by weak Van der Waals forces (intermolecular forces). As covalent compounds, the physical properties of alkenes are similar to alkanes. Boiling Points MUST Know!The first 3 alkenes are gases.The Melting and boiling point of … Read more

Isomerism of Alkenes

Isomerism of Alkenes All the alkenes with 4 or more carbon atoms in them show isomerism. For example, butene has 3 isomer: ExampleDraw the structural formulae for all 5 isomers of pentene.Answer:

Alkene

General Formula: CnH2n, n = 2, 3, 4, …. Functional Group: Double Bond First 3 Members: Chemical Properties: MUST Know! Alkenes are unsaturated hydrocarbons. Alkenes are a family of hydrocarbons (compounds containing carbon and hydrogen only) containing a carbon-carbon double bond. Therefore, alkenes are unsaturated hydrocarbons. The general formula for alkene is CnH2n where n = … Read more

Isomerism

Isomerism Isomers are compounds with the same molecular formula but different structural formulae. Isomerism is the existence of two or more compounds that have the same molecular formula but different structural formulae.Examples of the two isomers of butane(The 2 molecules have same molecular formulae but different structural formulae) Isomers have different physical properties because they … Read more

Structural Formula of Carbon Compounds

A molecular formula is a chemical formula which shows the actual number of atoms of each element present in one molecule of a substance A structural formula is a chemical formula which shows the arrangement of the atoms in a molecule of a substance. Writing the Structural Formulae Rules to be followed: All atoms are … Read more

Chemical Properties of Alkanes

Chemical Properties of Alkanes Alkanes are chemically less reactive compared to the other carbon compound such as alkene, alcohol or carboxylic acid. Alkanes do not react with chemicals such as oxidizing agents, reducing agents, acids and alkalis. Alkanes are saturated hydrocarbon with strong carbon-carbon (C – C) bonds and carbon-hydrogen (C – H) bonds. All … Read more

Physical Properties of Alkanes

Physical Properties of Alkanes Alkanes are covalent compounds, hence their physical properties are similar to other covalent compounds. The atoms in an alkane molecule are bonded together by strong covalent bonds  (intramolecular forces). The molecules are held together by weak Van der Waals forces (intermolecular forces). Boiling Points Boiling Point of Alkane The boiling point of alkane … Read more

Alkane

General Formula: CnH2n+2, n = 1, 2, 3, … Functional Group: No Functional Group First 3 Members: Alkane are the simplest family of hydrocarbons – compounds containing carbon and hydrogen only. They only contain carbon-hydrogen bonds and carbon-carbon single bonds. Alkanes are saturated hydrocarbon Nomenclature of Alkanes Nomenclature = Naming method. All organic carbon compounds … Read more

Homologous Series

Homologous Series A series of compounds with similar chemical properties, in which members differ from one another by the possession of an additional CH2 group, is called a homologous series. Each homologous series must have the following four characteristics: Every member in the homologous series can be represented by a common formula. For example: Alkane: … Read more