Chemistry 104 Midterm Test Solutions 100% Correct Answers

Chemistry 104 midterm TEST SOLUTIONS 100% CORRECT ANSWERS What is a major difference between inorganic and organic compounds? - ANSWER Organic compounds contain carbon; few inorganic compounds do. Identify the correct statement: The alkanes represent one family of organic compounds - ANSWER that is composed of carbon and hydrogen. Which of the following is an alcohol? - ANSWER CH3CH2OH Which of the following terms applies to the alkanes? - ANSWER hydrophobic What is a characteristic shared by the alkanes? - ANSWER flammable Complete combustion of pentane produces _____ . - ANSWER CO2 and H2O What is the most common type of bond found in organic molecules? - ANSWER covalent Isomers have identical physical and chemical properties. - ANSWER False The boiling point for normal alkanes will increase as the number of carbons increases. - ANSWER True Which of the following is the correct IUPAC name for the following compound? - ANSWER 5-bromo-1,3-cyclohexadiene Which of the following compounds is trans-3-hexene? - ANSWER c Which of the compounds below could correctly be called a cis compound? - ANSWER d The benzene ring as a branch is called a _____ group. - ANSWER phenyl A major source of aromatic compounds is _____ . - ANSWER coal tar Which of the following could exhibit cis/trans isomerism? - ANSWER 2-butene Markovnikov's rule indicates that in the addition of H-X to an alkene, the hydrogen becomes attached to the carbon atom that is already bonded to more hydrogens. - ANSWER True Another name for 1,2-dimethylbenzene is m-dimethylbenzene. - ANSWER False What is the group that distinguishes alcohols from other classes of compounds? - ANSWER hydroxy To which class of compounds does cholesterol belong? - ANSWER an alcohol What is the correct IUPAC name for the following compound? Hint: start from the alcohol, and remember to count the longest chain of carbons. - ANSWER 2-ethyl-1-butanol What is the correct IUPAC name for the compound shown? Note: this is not a phenol derivative. - ANSWER 2-methylcyclopentanol What is the name of the compound shown? Note: this one is a phenol ! - ANSWER 3,5-dibromophenol What is the correct classification for the alcohol shown below? Hint: Remember to start counting carbons from the side closest to the hydroxy group. - ANSWER secondary Which of the following compounds is correctly classified as a tertiary alcohol? 3-methyl-1-butanol Image result for 3-methyl-1-butanol 2-methyl-1-butanol Image result for 2-methyl-1-butanol 3-methyl-2-butanol