“Hydrocarbons” Charles Page High School Dr. Stephen L. Cotton

Chapter 25 - Review l How many double covalent bonds are in an alkane? l How many valence electrons surround a carbon atom? l With how many covalent bonds does each carbon atom participate in an organic compound?

Chapter 25 - Review l How many carbons are in a molecule of hexane? l What is the name of the compound with the formula: H H H H H H H H-C-C-C-C-C-C-C-H H H H H H H H

Chapter 25 - Review l What is the substituent on the following compound? CH 3 CH 2 CH 2 CH 2 Cl l What prefix is used to represent the substituent: CH 3 -CH 2 -CH 2 - l If a substituent appears 4 times in a compound, what prefix is used?

Chapter 25 - Review l Name the following: CH 3 CH 3 CH 3 – CH – CH – CH - CH 3 CH 3

Chapter 25 - Review l What is the IUPAC name for: CH 3 CH 2 – CH – CH 2 – C - CH 3 CH 3 CH 3 CH 2 CH 3

Chapter 25 - Review l What is the name of the compound: CH 3 CH(CH 3 )C(CH 3 ) 3 l What is the physical state of the smallest alkanes at room temperature? l What is the simplest hydrocarbon containing a carbon-carbon bond?

Chapter 25 - Review l The carbon-carbon bonds in alkanes are _____ to rotate. l What is the general formula for a continuous-chain alkane? l What is the simplest alkane? l What increment of change occurs between propane and butane in the alkane series?

Chapter 25 - Review l Name this: CH 3 CH 2 CH 3 l A saturated continuous-chain hydrocarbon with seven carbons is ______. l Draw the condensed structural formula for 2,2,3-trimethylbutane.

Chapter 25 - Review l The name of an alkyl group that contains two carbon atoms is __. l Which of the following compounds is an isomer of butane: a) 2,2-diethylpropane, or b) 2-methylpropane l In which of the following is hexane most likely to dissolve: a) ethyl alcohol, or b) nonane

Chapter 25 - Review l Which of the following compounds has the lowest boiling point: a) 2-methylhexane, or b) 2,2,3-trimethylbutane l Why is a carbon-hydrogen bond essentially nonpolar? l Structural isomers have _____. l Hydrocarbons in general are ____ dense than water.

Chapter 25 - Review l Which is a structural isomer of hexane: a) 2,2-dimethylbutane, or b) 2-methylpentene l What is the name of the hydrocarbons with double covalent bonds?

Chapter 25 - Review l Which of the following compounds is an unsaturated hydrocarbon: a) propyne, or b) nonane l What is the name of the smallest alkyne? l Which compound is an alkene: a) propanone, or b) nonene

Chapter 25 - Review l In which of the following compounds does rotation occur around a covalent bond between carbons: a) ethane, or b) ethene l An organic compound that contains only carbon and hydrogen and a triple bond (all others are single) is classified as a(n) ______.

Chapter 25 - Review l Which carbon is the assymetric carbon in the following: CH 2 - CH 3 H - C - CH 3 CH 2 – CH 2 - CH 3

Chapter 25 - Review l Which carbon is the assymetric carbon in the following: CH 3 CH 2 - CH 3 H - C – C - OH OH OH

Chapter 25 - Review l What is the configuration (cis- or trans-) of the following: Cl Cl C = C H H

Chapter 25 - Review l What is the configuration (cis- or trans-) of the following: H Cl C = C Cl H

Chapter 25 - Review l Name the following compound: HC-CH HC C-CH 2 -CH 2 -CH 2 -CH 2 -CH 3 HC=CH

Chapter 25 - Review l Name the following compound: HC-C-CH 2 -CH 3 HC C-CH 2 -CH 3 HC=CH

Chapter 25 - Review l Name the following compound: CH 3 -C-CH HC C-CH 2 -CH 3 HC=CH

Chapter 25 - Review l Hydrocarbons containing a saturated carbon ring are called _____ hydrocarbons. l What type of hydrocarbon is the following compound: CH 3 –CH 2 –CH 2 –CH 2 –CH 2 –CH 3

Chapter 25 - Review l What compound is the simplest of the arenes? l Which of the following molecules does NOT display resonance: a) cyclohexane, or b) benzene l Which type of coal has the highest carbon content? l What is the main hydrocarbon component of natural gas?