Resonance: The phenomenon in which two or more structures can be written for a substance which involves identical positions of … Read more

Physical Properties: The first three members are gases, next eight members are liquids and the higher alkynes are solids. They … Read more

Alkyne: An alkyne contains two hydrogen atoms less than the corresponding alkene. It is characterized by the presence of a … Read more

Properties of Alkenes: The first three members (C2H4, C3H6 and C4H8) are colourless gases; the higher ones i.e. C5 to … Read more

Preparations of Alkene: Following methods are  used to prepare alkenes- 1) By dehydration of Alcohol: When an alcohol is heated … Read more

Geometrical Isomerism: When same molecular formula represents two or more compounds which differ in their spatial arrangement of atoms or … Read more

Alkenes: Alkenes are hydrocarbons that contain carbon-carbon double bonds in their molecules. They are also called Olefines as lower members … Read more

Physical Properties: First four alkanes methane, ethane, propane and butane are gases. Next thirteen members (C5-C17) are colourless liquids. Higher … Read more

Methods of Preparation: Methods of preparation of Alkanes: 1) Hydrogenation of alkene or alkynes: Alkane is prepared by heating alkenes … Read more

Conformations: Conformations are different spatial arrangements of atoms or groups attached to carbon atoms bonded by single bond which arise … Read more