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chemistry 12th class cbse notes

Physical & Chemical Properties of Alcohols

Physical properties of alcohols Lower alcohols are liquid at room temperature while higher ones are solid. The boiling...
chemistry 12th class cbse notes

Preparation of Alcohols

General methods of preparation of alcohols are described below: Preparation of Alcohols From alkenes: By acid catalysed hydration of alkenes in accordance with...
chemistry 12th class cbse notes

Nomenclature of Alcohols

IUPAC naming system: Select the longest possible chain that contains the α-carbon Number the carbon atoms in the...
chemistry 12th class cbse notes

Alcohols and Classification of Alcohols

Alcohols The compounds in which hydroxyl group (-OH) is attached to a saturated carbon atom are called as Alcohols. Classification of alcohols #1 On the basis of...
chemistry 12th class cbse notes

Polyhalogen Compounds

Polyhalogen Compounds Carbon compounds containing more than one halogen atom are known as polyhalogen compounds. For example: CFCl3, CH2Cl2 etc. Some important polyhalogen compounds are described...
chemistry 12th class cbse notes

Chemical Reactions of Halides

Chemical Reactions of Halides The reaction of haloalkanes: The reactions of haloalkanes may be divided into the following categories: ...
chemistry 12th class cbse notes

Physical Properties of Halides

Physical Properties of Halides Alkyl halides are colourless when pure. However, bromides and iodides develop colour when exposed to light. Many...
chemistry 12th class cbse notes

Methods of Preparation of Haloalkanes and Haloarenes

Methods of Preparation of Haloalkanes and Haloarenes From Alcohols The hydroxyl group of an alcohol is replaced by halogen on reaction with concentrated halogen acids, phosphorus...
chemistry 12th class cbse notes

Nature of C-X Bond

Nature of C-X Bond X is more electronegative than carbon. So, the C-X bond is polarized with C having a partial positive charge and X...
chemistry 12th class cbse notes

Nomenclature of Haloalkanes and Haloarenes

The common names of alkyl halides are derived by naming the alkyl group followed by the halide. Alkyl halides are named as halo-substituted hydrocarbons...