endobj /Subtype /Form << /S /GoTo /D [37 0 R /Fit] >> endobj >> M.P. Most of these chemical reactionsoccur at the Carbon-Carbon double bonds. endobj Alkenes undergo three types of main reactions, which are as follows Alkenes react with a much richer variety of compounds than alkanes. This makes alkenes far more reactive than alkanes. The following four classes of compounds will be explored. << /S /GoTo /D (subsection.0.2) >> This triple bond contributes to the nonpolar bonding strength, linear, and the acidity of alkynes. endobj As a result, intermolecular forces of attraction are stronger. 36 0 obj << /S /GoTo /D (subsection.0.3) >> Table 8.1 shows that the boiling points of straight-chain alkenes increase with increasing molar mass, just as with alkanes. The characteristic reaction of alkanes is substitution; that of alkenes and alkynes is addition to the double or triple bond. stream endobj Physical Properties Winthrop Chemistry 793246 PPT. Classes of Hydrocarbons Hydrocarbons can be divided into several di erent classes or depending on the functional group present. 8 0 obj 38 0 obj C 5-C 18 are liquids and higher members are solids. Solubility of Alkynes First 4 members are gases. This solubility in water and polar solvents is a characteristic feature to alkenes as well. They are colourless and odourless. physical and chemical properties of a class of organic compounds. As a result, intermolecular forces of attraction are stronger. Physical Properties. << /S /GoTo /D (subsection.0.2) >> endobj >> /Matrix [1 0 0 1 0 0] (Combustion) 21 0 obj The C-C double bond is more reactive than a single C-C bond. inc. With inc. This leads to them having different properties, and different chemistry. (Classes of Hydrocarbons) 33 0 obj stream /Length 15 Physical Properties include nonpolar due to slight solubility in polar solvents and insoluble in water. /FormType 1 28 0 obj Experiment: Reactions of alkanes, alkenes, and cycloalkenes* Purpose: To investigate the physical properties, solubility, and density of some hydrocarbon. – The simplest of the functional groups are the hydrocarbons, which include the alkanes, alkenes, alkynes, and aromatic hydrocarbons. 32 0 obj To compare the chemical reactivity of an alkane, an alkene, and an aromatic compound. << /S /GoTo /D (subsection.0.3) >> C 5-C 18 are liquids and higher members are solids. Physical Properties. Presentation Summary : Properties of Alkenes. (Chemical Properties) 22 0 obj The electron density is more exposed above and below the plane of the << endobj x���P(�� �� 4. << /S /GoTo /D (subsection.0.1) >> Discussion A. >> 41 0 obj Others Carotene Vitamin A. While alkanes and alkenes are both hydrocarbons, the primary difference is that alkanes are saturated molecules, containing only single covalent bonds (σ-bonds) between the carbon atoms whereas alkenes are unsaturated molecules containing a double covalent bond (combination of a π-bond and a σ-bond). Quick revision3 draw diagrams ppt MRSMPC. Melting points of alkenes are higher than alkanes because p electrons of double bond are polarizable. %PDF-1.5 /Filter /FlateDecode (Identity of an Unknown Hydrocarbon) Fruit coloring Sec. Alkynes … /Filter /FlateDecode (Reaction with Potassium Permanganate) Physical Properties of Alkynes. endobj (Reaction with Bromine) Alkynes are similar to alkenes in both physical and chemical properties. 16 0 obj /BBox [0 0 100 100] endobj endstream /Resources 39 0 R endobj 18 0 obj endobj inc. With inc. << /S /GoTo /D (subsection.0.1) >> endobj endobj (Acetylene) The first three alkynes are gases, and the next eight are liquids. endobj They … Redox part 3= rusting - reactivity series and diff between electrolytic cell... MRSMPC. All alkynes higher than these eleven are solids Chemical properties of alkenes Siti Alias. A family of organic compounds with ; similar CHEMICAL properties; Chemical properties due to same ; FUNCTIONAL GROUP; PHYSICAL properties changes gradually ; down each series . x��. Alkanes and alkenes do not react as follows. Alkynes resemble the alkenes and alkanes in physical properties.The molecules that have a lower molecular weight are gases at room temperature and as the molecular weight increases their physical state changes from gas to liquid and then to solids. endobj They are colourless and odourless. endobj %���� 29 0 obj 13.8 Properties of Alkenes Objectives Determine the properties of alkenes Properties of Alkenes Similar to alkanes Occur widely in nature Ethylene Triggers fruit ripening Can be used artifically. Melting points of alkenes are higher than alkanes because p electrons of double bond are polarizable. endobj << /S /GoTo /D (subsection.0.1) >> << << /S /GoTo /D (subsection.0.5) >> << /S /GoTo /D (subsection.0.4) >> 12 0 obj & B.P. 07 - Structure and Synthesis of Alkenes - Wade 7th Nattawut Huayyai. (Physical Properties) 24 0 obj /Length 4968 (Combustion) 25 0 obj 39 0 obj 15 0 obj Alkenes. Alcohols. 4 0 obj 11 0 obj endobj – Many functional groups contain oxygen atoms, such as alcohols, ethers, aldehydes, ketones, carboxylic acids, and esters. & B.P. endobj 19 0 obj Alkanes are not absolutely unreactive.