CHEM 210- EXAM 1- CHAPTERS 10, 11, 12, 13, and 14 + QUIZZES /PP QUESTIONS AND ANSWERS

Choose the most CORRECT property of an organic compound. A) low boiling point B) high melting point C) conducts current D) flammable E) A and D Answer: E) A and D A) Low boiling point AND D) Flammable Which of the following compounds will have double bond(s) in it? A) octane B) heptyne C) benzene D) A and C E) A and B Answer: D) A)Octane AND C)Benzene What is the molecular formula of cyclohexane? A) C6H8 B) C6H12 C) C6H10 D) C6H14 Answer: B) C6H12 A compound with C5H10 molecular formula can be a/ an A) alkane B) alkene C) cycloalkane D) A or B E) B or C Answer: E) B or C B) Alkene or C)Cycloalkane Identify the family of organic compounds for the structure shown: CH3-CH2-CH=CH-CH3 A) alkane B) alkene C) alkyne D) aromatic Answer: B) Alkene Which of the following structures wold have the highest boiling point? A) CH3CHO B) CH3CH2OH C) CH3COOH D) CH3CH2SH Answer: C) CH3COOH The following reaction would be best classified as: CH3CH=CH2 + H2 --> CH3CH2CH3 A) addition B) reduction C) oxidation D) A and B E) A and C Answer: D) A and B A) Addition AND B)Reduction What is the name of the compound that is responsible for the symptoms of a hangover? A) acetone B) acetic acid C) ethanol D) ethanal Answer: D) Ethanal Which of the following will give a silver mirror when treated with Tollens reagent? A) ketone B) alcohol C) alkene D) aldehyde Answer: D) Aldehyde If a compound/ molecule does not like to mix/ dissolve in H2O, then that particular molecule is best described as: A) hydrophilic B) hydrophobic C) non polar D) A and C E) B and C Answer: E) B and C B) Hydrophobic AND C) Non-polar What is the name of the aqueous solution of formaldehyde that is available commercially as a tissue preservative? Formalin What is the general name for a chemical/ drug that is used to relieve pain? Analgesic Red color of liquid Br2 disappeared when a hydrocarbon was added to it. What is the identity of the hydrocarbon? A) cycloalkene B) alkene C) alkyne D) A and B E) A, B and C Answer: D) A and B A) Cycloalkene AND B) Alkene Phenol solution can be used as an antiseptic. What is the common name of aqueous phenol? A) Phenol B) Aromatic alcohol C) Carbolic acid D) Weak acid Answer: C) Carbolic acid Which of the following is expected to have the greatest solubility in H2O? A) CH3CH2CH2OH B) HOCH2CH2CH2OH C) HOCH2CH(OH)CH2OH D) CH3CH2CH3 Answer: C) HOCH2CH(OH)CH2OH What is true about a compound with the name 3, 3-dimethyl-1-butene? It contains (a) A) six carbons in total B) triple bond C) double bond D) A and C E) A and B Answer: D) A and C A) Six carbons in total AND C)a double bond Which of the following names indicate the presence of an alcohol group in its structure? A) Albuterol B) Cholesterol C) Tylenol D) B and C E) A, B and C Answer: E) A, B and C A)Albuterol, B) Cholesterol, AND C) Tylenol Which of the following structures represent a thiol? A) CH3CHO B) CH3CH2SH C) CH3CH2CH2COOH D) CH3CH2OH Answer: B) CH3CH2SH Using a fur case at home during the winter season with insufficient air flow will produce: Carbon monoxide One of the important bonds that help to maintain the structure of Insulin hormone is: A) covalent bond B) ionic bond C) hydrogen bond D) disulfide bond Answer: D) Disulfide bond Organic compounds tend to have lower boiling points than inorganic compounds. T/F True. Alkanes are more soluble in H2O than in no polar solvents. T/F False. Carbon monoxide may be produced in the partial (incomplete) combustion of methane. T/F True. What term describes molecules that have the same molecular formula, but have different structures? Isomers. What type(s) of carbon-carbon bonds are never found in a saturated hydrocarbon? Double and triple. Which linear alkane contains five carbon atoms? Pentane. What is the molecular formula of butane? C4H10. Name the major family of organic compounds that contain a benzene structure. Aromatic. Name the functional group found in all alcohols. Hydroxyl. Identify the functional group and the family CH3-CH2-NH2 -Amine functional group -Amine family Alkenes contain only double bonds. T/F False. The molecular formula of 3-octene is C8H16. T/F True. Both 1-butane and 2-butane have cis- and trans-isomers. T/F False. Margarine is mad by the hydrogenation of vegetable oils. T/F True. Palladium is a catalyst that may be used in hydrogenation. T/F True. Hydration of an alkene produces a ketone. T/F False. All aromatic compounds include benzene in their structure. T/F True. The names meta-dimethylbenzene and 1,3-dimethylbenzene refer to the same compound. T/F True. which of the following reaction types is most characteristic of aromatic compounds? A) addition B) elimination C) combination D) substitution Answer: D) Substitution. What product is formed in the reaction between an alkene and a hydrogen halide? Alkyl halide. Which of the following reactions is used to convert alkenes to alkanes? Hydrogenation If the molecular formula, C5H8 represents a straight chain hydrocarbon and not a cyclic hydrocarbon, does it represent an alkane, alkene, or alkyne? Alkyne What is the molecular formula of 1,3-cyclopentadiene? C5h6 How many moles of hydrogen gas (H2) are needed to convert one mole of 1,3,5-hexatriene to hexane? 3 moles What class of compounds is represented by the general formula RSH? Thiols. What class of compounds is represented by the general formula ROH? Alcohols What is the common name of 1,2,3-propanetriol? Glycerol What is the common name of 4-chlorophenol? Para-chlorophenol How many R groups are bonded to the carbinol carbon of a secondary alcohol? 2 Write the structure and the I.U.P.A.C. Name for the product of the following hydration reaction: CH2=CH2 + H2O-----? CH3CH2OH, Ethanol What is the I.U.P.A.C. Name of the reduced form of methanal? Methanol Which product of the oxidation of ethanol causes many of the symptoms of the "morning-after hangover"? ethanal or acetaldehyde Why do alcohols boil at higher temperatures than hydrocarbons or ethers of similar molecular weights? They are polar and can form intermolecular hydrogen bonds. What role does coenzyme A perform in biochemical reactions? It serves as a carrier of acetyl groups. The formation of a disulfide bond (-S-S-) between two sulfhydryl groups (-SH) is an oxidation process. T/F True. Which two types (classes) of organic compounds contain the carbonyl functional group? Aldehydes and ketones What functional group causes aldehydes and ketones to be moderately polar? Carbonyl group. What is the common name of the simplest aldehyde? Formaldehyde What compound is produced in the liver by the oxidation of methanol? Provide both the common and I.U.P.A.C. Names. Formaldehyde; methanal What is the name of the aqueous solution of formaldehyde that is available commercially as tissue preservative? Formalin Name two common laboratory tests used to distinguish between aldehydes and ketones. Tollen's test and Benedict's test What does the term "gluconeogenesis" mean and under what circumstances does it become important? It is the production of glucose from smaller molecules. This occurs when the blood sugar level falls to excessively low levels as a result of strenuous exercise or starvation. What is the I.U.P.A.C. Name of the three carbon aldehyde? Propanal What is the name of the organic product formed when the compound, CH3CH2CH2CHO, is reduced by the addition of H2? 1-butanol Cortisol is an anti-inflammatory agent that also regulates carbohydrate metabolism. Which of the following best describes the types of alcohols present in cortisol? Primary, secondary, and tertiary. Which statement concerning the compound ethanoic acid is FALSE? A) It contains a carboxyl group B) Its condensed structure is CH3CH2COOH. C) Its common names is acetic acid D) It contains two carbons E) It is a very polar compound B) Its condensed structure is CH3CH2COOH. What is the name of the spherical particles formed in solution when specks of foil or grease are surrounded by soap molecules? Micelles. Long chain carboxylic acids are known as which of the following? Fatty acids.