Organic Chemistry Questions And Answers – Flashcards
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| In which of the following is generally true of most organic compounds? |
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| Their bonding is covalent in nature. |
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| In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom? |
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| Alcohols |
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| In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom? |
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| Carboxylic Acids |
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| Which of the following classes of compounds can be categorized as primary, secondary or, tertiary? |
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| Amines |
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| Which of the following is an example of a secondary alcohol? |
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| CH3CHCH3 with an OH coming off from the second carbon. |
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| Which of the following is an example of a primary amine? |
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| ALL OF THESE, CH3NH2; CH3CH2NH2, AND CH3CH2CH2NH2. |
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| Which of the following is an example of a secondary amine? |
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| CH3CH2CH2NHCH3 |
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| Which of the following is an example of a carboxylic ester? |
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| CH3COCH3 with an oxygen double bond coming off from the second carbon |
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| Of the four alcohols with molecular formula C4H10-O; how many are primary alcohols? |
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| Two |
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| Which of the following functional groups does not contain a carbonyl group? |
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| a. ester b. alcohol c. aldehyde d. keytone |
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| Compounds which contain only carbon-carbon single bonds are classified as which of the following? |
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| Alkanes |
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| Compounds which contain a carbon-carbon double bond are classified as which of the following? |
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| Alkenes |
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| Compounds which contain a carbon-carbon triple bond are classified as which of the following? |
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| Alkynes |
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| What is the name given to a -CH2- group? |
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| Methylene |
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| Dodecane is a 12 carbon alkane. How many hydrogen atoms are in dodecane? |
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| 26 |
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| Which of the following compounds are constitutional isomers? |
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| All of them. |
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| Which of the following are representations of the same molecule? |
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| ? |
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| Which of the following is(are) constitutional isomer(s) of hexane, CH3(CH2)4CH3? |
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| CH3CCH2CH3 with 2 CH3's coming off from the second carbon. |
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| Given the compounds 2,3-dimethylpentane, 3-ethylpentane and 3-methylhexane, which are constitutional isomers of one another? |
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| All of these, 2,3-dimethylpentane and 3-ethylpentane, 2,3-dimethylpentane and 3-methylhexane, and 3-ethylpentane and 3-methylhexane. |
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| Which of the following is a correct IUPAC name? 1-methylpentane, 2-ethylpentane, or 3-ethylpentane |
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| 3-ethylpentane |
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| Which of the following is the correct line-angle structure for 3-ethylheptane? |
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| ? |
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| The production of chloromethane by the reaciton of methane gas with chlorine gas is an example of which type of reaction? |
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| Substitution |
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| Given an alkane, an alkene, and an alkyne, each of which contains two carbon atoms, which compound will contain the fewest hydrogen atoms? |
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| The alkyne |
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| Which of the following is true in the IUPAC system for naming alkenes? |
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| The alkene is named based on the longest carbon chain which contains the double bond. |
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| Which of the following is not a correct IUPAC name for an alkene? |
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| ? |
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| What is the correct IUPAC name for the following compound? |
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| 2,3-dimethyl-2-hexene |
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| Which of the following is the most characteristic reaction of alkenes? |
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| a. addition, b. oxidation, c. reduction d. substitution |
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| Which of the listed products will be formed in the following reaction? |
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| Copy from paper |
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| What product is obtained by the hydrobromination of 2-methyl-1-pentene? |
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| 2-bromo-2-methylpentane |
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| What type of alcohol is formed by the hydration of 1-butene? |
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| a. primary, b. secondary, c. tertiary, d. none of these, the product is not an alcohol. |
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| Which alcohol is formed by the hydration of 2-methyl-2-pentene? |
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| Copy from paper |
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| Which product is formed by the chlorination of 2-methyl-1-butene? |
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| 1,2-dichloro-2-methylbutane |
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| On what basis was the name aromatic originally given to compounds? |
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| Their odors were considered to be pleasant. |
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| Which of the following compounds is aniline? |
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| An OH coming off from a benzene ring. |
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| What is an acceptable name of CH2CH3 on top of the benzene ring and CH2CH3 on the third carbon? |
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| m-diethylbenzene |
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| What is the IUPAC name for the following compound. Br on the first carbon, NH2 on the third carbon, and Cl on the 4th carbon of a benzene ring? |
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| 5-bromo-2-chloroaniline |
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| Which of the following structures represents 2,4,6-tribromophenol? |
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| OH on top, Br on carbon 2, Br on carbon 4, and Br on carbon 6 of a benzene ring. |
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| Which of the following structures represents m-nitrobenzoic acid? |
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| ? |
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| Which aromatic ring substitution reaction is used in the preparation of synthetic detergents? |
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| Sulfonation |
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| In a phenol, which group is the substituent on the benzene ring? |
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| Hydroxyl |
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| What organic product is formed when benzene reacts with nitric acid in the presence of concentrated sulfuric acid? |
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| ? |
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| Which of the following compounds is found in peppers? |
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| Capsaicin |
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| Which of the following is the correct IUPAC name of CH3CH2CH2 on carbon 1 and OH on carbon 2 of a benzene ring? |
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| 2-propyl-1-hydroxybenzene |
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| Which of the following elements is present in thiols but not in alcohols? |
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| a. C, b. O, C. P, d. S |
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| What is the IUPAC name of the following compound? |
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| ? |
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| What is the IUPAC name of CH3CH2CH2CHCH3 with an OH coming off from the 4th carbon from the left? |
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| 2-pentanol |
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| What is the IUPAC name of CH3CHCH2CHCH3 with a CH3CH2 coming off from the 2nd carbon and an OH coming off from the 4th carbon? |
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| 4-methyl-2-hexanol |
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| Which of the following is true about the polarities of the C-O and O-H bonds? |
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| ? |
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| Which of the following classes of compounds react with sodium hydroxide to give a water-soluble salt? |
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| ? |
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| Which of the following alcohols will undergo acid-catalyzed dehydration most easily? |
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| ? |
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| Which of the following is the major product obtained from the dehydration of 2,3-dimethyl-3-pentanol? |
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| ? |
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| If experimental conditions are carefully controlled, aldehydes can be obtained by the oxidation of which of the following? |
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| ? |
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| Keytones can be obtained by the oxidation of which of the following? |
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| ? |
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| Which type of functional group has a phenol backbone? |
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| A compound that contains a hydroxyl group bonded to a benzene ring. |
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| What is Thymol and Vanillin good for? |
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| They are important constituents of thyme and vanilla beans, respectively. |
