Alkanes and alkenes pdf

Alkenes A homologous series of unsaturated hydrocarbons with general formula CnH2n. Ethene is the most important alkene as it is used to make many useful chemicals and products. Physical Properties The trend in physical properties of alkenes is similar to that of alkanes. Alkenes are more reactive than alkanes. Test for unsaturated compounds - When an alkene is added to bromine, the reddish-brown bromine is decolourised. Isomerism in Alkanes and Alkenes Isomers are different compounds with Atoms are joined together in different - same molecular formula, ways, though the compounds have the - different structural formula and same molecular formula.

Exercise 1: Isomerism in alkanes. Draw the isomers of pentane. Exercise 2: Isomerism in alkenes. Draw the isomers of butene. Importance of isomers - Car engines run better when burning branched-chain isomers. Foods and Unsaturated compounds Some foods are polyunsaturated. Ripening of Fruits - Unripe fruits produce small amounts of ethene which helps it to ripen.

They can be put together with unripe fruits to help them ripen. Open navigation menu. Close suggestions Search Search. User Settings. Skip carousel. Carousel Previous. Carousel Next. What is Scribd? Explore Ebooks. Bestsellers Editors' Picks All Ebooks. Explore Audiobooks. Bestsellers Editors' Picks All audiobooks. Explore Magazines. Editors' Picks All magazines. Explore Podcasts All podcasts. Difficulty Beginner Intermediate Advanced. Explore Documents. Chapter 22 - Alkanes and Alkenes.

Document Information click to expand document information Description: alkane. Did you find this document useful? Is this content inappropriate? Report this Document. Description: alkane. Flag for inappropriate content. Download now. Related titles. Carousel Previous Carousel Next. Jump to Page. Search inside document. Some may contain O, N or an halogen Group VII Organic Compounds Contain only C and H Contain halogen atoms Contain C, H and O hydrocarbons Organic halogen compounds Organic Esters Alkanes Alkenes Alcohols acids Homologous series: a family of organic compounds with - same general formula - similar chemical properties - each member differs from the next by a CH2 group of atoms - a gradual change in physical properties down the series Functional Groups: the special group of atoms for compounds of each homologous series except alkanes - E.

Alkanes are saturated compounds But they still undergo combustion and substitution with chlorine. Solution: Exercise 2: Isomerism in alkenes. Solution: Importance of isomers - Car engines run better when burning branched-chain isomers.

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