Class 11

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

Isomerism of alkane: Alkane exhibit chain isomerism i.e. same molecular formula represent two or more than two compounds which are … Read more

Alkanes: Alkanes are saturated hydrocarbons containing only carbon-carbon single bonds in their molecules. They are also called paraffins i.e. little … Read more

Hydrocarbons: Hydrocarbons are compounds containing carbon and hydrogen only. Depending upon the type of carbon—carbon bonds present, hydrocarbon can be … Read more