PPT-Alkanes, Alkenes, Alkynes

Straight chain alkanes will have symmetrical electronegativities so they will behave as nonpolar molecules Since like dissolves like the alkanes will all be soluble in eachother However since water is polar alkanes will NOT dissolve in water think of pouring oil on water . 1 Chemical Tests for Alkanes, Alkenes, and Aromatic Compounds Introduction There are four types of hydrocarbons : alkanes, alkenes, alkynes, and aromatic compounds, each type with different chemical Objectives. Rules. Unsaturated. Alkenes. I certainly learnt to call ethylene . ethene. and propylene . propene. (see slide 1). Molecular formula. Alkanes. C. n. H. 2n+2. Alkenes. C. n. H. 2n. Alkynes?. Alkanes, alkenes, alkynes and aromatics. Types of Hydrocarbons. Hydrocarbons contain C and H. There are 4 families, alk. anes. only have C-C single bonds, alk. enes. have at least one C=C and alk. ynes. Alkynes. Alkynes are molecules that incorporate a C. C triple bond. Alkynes. Given the presence of two pi bonds and their associated electron density, alkynes are similar to alkenes in their ability to act as a nucleophile. And Their Halogen Derivatives. IUG, Fall 2012. Dr . Tarek. . Zaida. Alkenes and Alkynes. 1. . Alkenes. are compounds containing carbon –carbon double bonds. The simplest . alkene. , . ethene. , is a plant hormone.. Preparation of alkenes. Preparation of alkenes continued. Dehydration of alcohols. The H and OH are removed from adjacent carbons.. E.g. ethanol may be heated with . sulphuric. acid to create . ethene. Hydrocarbons . Essential idea. Structure, bonding and chemical reactions involving functional group inter-conversions are key strands in organic chemistry.. Learning outcomes . Understand:. Alkanes. have low reactivity and undergo free-radical substitution reactions.. and alkyne . Reactions, continued. Dr. Clower. CHEM 2411. Spring 2014. McMurry. (8. th. ed.) sections 7.7-7.8, 7.10-7.11, 10.3-10.4, 8.2-8.8, 8.10, 8.12, 9.3-9.8, 7.1, 8.1, 9.2, 9.9 . Reactions of Alkynes. Newehy. Chemistry Department, College of Science, King Saud University. http://fac.ksu.edu.sa/melnewehy. Unsaturated Hydrocarbons. Alkynes. - . Alkynes. are . ydrocarbons. . that contain a . carbon–carbon . TIER 5. Predict and explain trends in boiling points of members of a homologous series. Discuss the volatility and solubility in water of compounds containing the functional groups: compounds up to six carbon atoms with one of the following functional groups: alcohols, . Division of Material. Alkenes and Alkynes are very versatile molecules in Organic Chemistry. As a result, there is a lot of information we need for them. . To make it manageable, the information is divided into two chapters.. Unsaturated Hydrocarbons. Unsaturated hydrocarbon. :. . contains one or more carbon-carbon double or triple bonds. alkene. :. . contains a carbon-carbon double bond and has the general formula C. n. Copyright ©The McGraw-Hill Companies, Inc. Permission required for reproduction or display.. Acetaldehyde – of commercial importance. . - oxidation to acetic acid. . - dehydration to acetic anhydride. Crude oil, hydrocarbons and alkanes. Carbon compounds as fuels and feedstock. Crude. oil. A. finite resource. Consisting. mainly of plankton that was buried in the mud, crude oil is the remains of ancient biomass..