Methods of Preparation of Alkenes Class 11 Notes | EduRev

Chemistry Class 11

Class 11 : Methods of Preparation of Alkenes Class 11 Notes | EduRev

The document Methods of Preparation of Alkenes Class 11 Notes | EduRev is a part of the Class 11 Course Chemistry Class 11.
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Alkenes

These are unsaturated non-cyclic hydrocarbons which have sp2 - hybridization with 120° bond angle.

Alkenes are also called olefins [oil.forming] which indicate their highly reactive nature.

Alkenes have general formula Cn H2n, where n = 2,3,4 …

C2H4 (ethene), C3H6 (propene), etc.


Methods of Preparation of Alkenes:

(i) From alkynes:

Methods of Preparation of Alkenes Class 11 Notes | EduRev


(ii) From alkyl halide [dehydrohalgenation]: 
Methods of Preparation of Alkenes Class 11 Notes | EduRev


(iii) From vicinal dihalides:
Methods of Preparation of Alkenes Class 11 Notes | EduRev


(iv) From alcohols by acidic dehydrogenation:
Methods of Preparation of Alkenes Class 11 Notes | EduRev

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