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Chapter 17
front 1  1) Which molecule is a carboxylic acid? | back 1 Answer: D |
front 2 2) Which functional group contains a carbonyl group and a hydroxyl group bonded to the same carbon atom? A) aldehyde B) amide C) carboxylic acid D) ester E) ketone | back 2 Answer: C |
front 3 3) Which functional group contains a carbonyl group and an ether linkage bonded to the same carbon atom? A) aldehyde B) amide C) carboxylic acid D) ester E) ketone | back 3 Answer: D |
front 4  4) Which molecule is an ester? | back 4 Answer: C |
front 5  5) Which molecule is an amide? | back 5 Answer: B |
front 6 6) The similarities in properties of carboxylic acids, esters, and amides can best be explained by A) their polarity and structural similarities. B) their similarities in molar mass. C) hydrogen bonding. D) the ease with which they form ions. E) none of these. | back 6 Answer: A |
front 7 7) The most common reactions of carboxylic acids or their derivatives involve A) addition across the double bond between carbon and oxygen. B) replacement of the oxygen atom in the carbonyl group. C) replacement of the group bonded to the carbonyl atom. D) oxidation of the R group. E) reduction of the R group. | back 7 Answer: C |
front 8  8) Which molecule shown is β-hydroxy butyric acid? | back 8 Answer: C |
front 9  9) Which molecule is formic acid? | back 9 Answer: C |
front 10 10) All of the statements concerning citric acid are true except A) it contains three carboxylic acid groups because its carbon skeleton is branched. B) it is very soluble in water. C) its salts are used in many consumer products. D) it is produced only by plants. E) it is a weak acid. | back 10 Answer: D |
front 11 11) Which of the following bonds is not present in a carboxylic acid functional group? A) C=C B) C=O C) C-O D) O-H E) none of the above | back 11 Answer: A |
front 12 12) The pleasant, characteristic odor of fruit flavorings is often associated with the presence of A) esters B) carboxylic acids C) carboxylate salts D) ketones | back 12 Answer: A |
front 13 13) Which compound is a carboxylic acid? A) CH3COO-K+ B) CH3COOH C) (CH3)2CHOOCH3 D) (CH3CO)2O E) (CH3)2O | back 13 Answer: B |
front 14 14) All of the statements about carboxylic acids are true except A) they undergo substitution reactions involving the -OH group. B) at low molecular weights they are liquids with sharp stinging odors. C) they form hydrogen bonds, causing their boiling points to be higher than expected on the basis of molecular weight. D) they react with bases to form salts which are often more soluble than the original acid. E) when they behave as acids, the -OH group is lost leaving the CO- | back 14 Answer: E |
front 15 15) Which acid would be expected to have the lowest boiling point? A) acetic, CH3CO2H B) benzoic, C6H5CO2H C) formic, HCO2H D) oxalic, (CO2H)2 E) stearic, CH3(CH2)16CO2H | back 15 Answer: C |
front 16 16) Which acid would be expected to have the highest boiling point? A) acetic, CH3CO2H B) benzoic, C6H5CO2H C) formic, HCO2H D) oxalic, (CO2H)2 E) stearic, CH3(CH2)16 CO2H | back 16 Answer: E |
front 17 17) Which of the following has the highest boiling point? A) ethane, CH3CH3 B) dimethyl ketone, CH3COCH3 C) ethyl alcohol, CH3CH2OH D) acetic acid, CH3COOH E) formaldehyde, HCHO | back 17 Answer: D |
front 18  18) What is the IUPAC name of the compound shown? A) 1-butanoic acid B) 4-butanoic acid C) 1-butenoic acid D) 3-butenoic acid E) none of the above | back 18 Answer: D |
front 19  19) What is the IUPAC name of the compound shown? A) 3-hexanoic acid B) 2-ethyl pentanoate C) 2-ethylpentanoic acid D) 3-heptanoic acid E) 4-heptanoic acid | back 19 Answer: C |
front 20  20) What is the common name of the molecule shown? A) γ-amino-α-hydroxybutyric acid B) 4-amino-2-hydroxybutanoic acid C) α-amino-γ-hydroxybutyric acid D) 1-amino-3-hydroxybutanoic acid E) none of these | back 20 Answer: A |
front 21  21) What is the IUPAC name of the molecule shown? A) γ-amino-α-hydroxybutyric acid B) 4-amino-2-hydroxybutanoic acid C) α-amino-γ-hydroxybutyric acid D) 1-amino-3-hydroxybutanoic acid E) none of these | back 21 Answer: B |
front 22  22) What is the IUPAC name of the molecule shown? A) ethyl butanoate B) butyl ethanoate C) acetyl butyrate D) butyl acetate E) 2-hexanoic ester | back 22 Answer: A |
front 23  23) What is the common name of the molecule shown? A) ethyl butanoate B) butyl ethanoate C) ethyl butyrate D) butyl acetate E) 2-hexanoic ester | back 23 Answer: C |
front 24  24) What is the IUPAC name of the molecule shown? A) diethanoic acid B) ethanedioc C) dibutanoic acid D) butanedioic acid E) pentanedioic acid | back 24 Answer: D |
front 25 25) An acyl group is a group in which | back 25 Answer: D |
front 26  26) When common names are used for acids, the underlined carbon atom in the molecule shown would be designated as the ________ C atom. A) alpha B) beta C) gamma D) #1 E) #2 | back 26 Answer: B |
front 27  27) Which molecule is acetic acid? | back 27 Answer: A |
front 28  28) Which molecule is oxalic acid? | back 28 Answer: D |
front 29  29) What is the common name of the molecule shown? A) acetic acid B) butyric acid C) formic acid D) lactic acid E) oxalic acid | back 29 Answer: B |
front 30 30) Which acid would be expected to have the lowest boiling point? A) acetic B) benzoic C) formic D) oxalic E) stearic | back 30 Answer: C |
front 31 31) Which acid would be expected to have the highest boiling point? A) acetic B) benzoic C) formic D) oxalic E) stearic | back 31 Answer: E |
front 32 32) What is the IUPAC name of the compound shown? CH3CH2COOCH3 A) 2-butanoic acid B) 3-butanoic acid C) methyl ethanoate D) propyl methanoate E) methyl propanoate | back 32 Answer: E |
front 33  33) What is the IUPAC name of the compound shown? A) 2-methyl propanamide B) N-methyl propanamide C) 2-methyl butanamide D) 3-methyl butanamide E) N-methyl butanamide | back 33 Answer: D |
front 34 34) An alpha hydroxy carboxylic acid has an additional -OH group attached to the molecule at which location? A) the carbonyl carbon atom B) the #2 carbon atom C) the carbon atom farthest from the carboxyl group D) the carbon atom that contains the amine group E) none of the above | back 34 Answer: B |
front 35  35) What is the IUPAC name of the compound shown? A) 1-methylpropanamide B) N-methylpropanamide C) N-butylethanamide D) N-methylbutanamide E) N-butylformamide | back 35 Answer: D |
front 36 36) Carboxylic acids generally taste ________. A) sour B) sweet C) bitter D) salty E) spicy | back 36 Answer: A |
front 37  72) This compound is A) an anhydride only. B) an ester only. C) both an ester and an anhydride. D) neither an ester nor an anhydride. E) phosphoric acid. | back 37 Answer: C |
front 38 38) The solubility of compounds containing the carboxylic acid group can be increased by reaction with A) sulfuric acid. B) nitric acid. C) sodium hydroxide. D) water. E) benzoic acid. | back 38 Answer: C |
front 39 39) Which equation correctly represents the dissociation of a
carboxylic acid in water? | back 39 Answer: C |
front 40 40) The ion formed from a carboxylic acid is called the A) carboxylate anion. B) carboxylate cation. C) ester anion. D) ester cation. E) amide cation | back 40 Answer: A |
front 41  41) Which formula correctly illustrates the form which acetic acid would take in a basic solution? | back 41 Answer: D |
front 42 42) Reaction of a carboxylic acid with a base like sodium hydroxide, NaOH gives ________ A) a carboxylate salt. B) an alkoxide salt. C) an ester. D) an alcohol. E) none of the above. | back 42 Answer: A |
front 43 43) Which of the following conditions would favor the carboxylate ion form of a carboxylic acid? A) low pH B) high pH C) both A and B D) neither A nor B | back 43 Answer: B |
front 44 44) Which of these compounds is the most soluble in water? A) CH3CH2CH2CH2CH2COOH B) CH3CH2CH2CH2CH2COO-Na+ C) CH3CH2CH2CH2CH2OH D) CH3CH2CH2CH2CH2CH3 E) CH3CH2OCH2CH2CH3 | back 44 Answer: B |
front 45 45) In the production of an ester, the carboxylic acid loses which atom or group of atoms? A) oxygen from the C=O B) H from the OH group C) the OH group D) the entire COOH group E) oxygen from the OH | back 45 Answer: C |
front 46 46) When an alcohol reacts with a carboxylic acid the major product is A) an amide. B) an amine. C) an ester. D) a salt. E) a soap. | back 46 Answer: C |
front 47 47) Reaction of butanoic acid with ethanol produces A) butyl ethanoate. B) ethyl butanoate. C) butyl ethanamide. D) ethyl butanamide. E) butyl ethyl ester. | back 47 Answer: B |
front 48  48) Which carboxylic acid is used to prepare the ester shown? | back 48 Answer: D |
front 49  49) What is the major organic product of the reaction shown? | back 49 Answer: B |
front 50 50) When an amine reacts with a carboxylic acid at high temperature the major product is A) an ester. B) an amide. C) a thiol. D) an ether. E) an alcohol. | back 50 Answer: B |
front 51 51) The common chemical name of aspirin is A) acetamide. B) acetylsalicylic acid. C) phenylalanyl aspartic acid. D) acetaminophen. E) lidocaine. | back 51 Answer: B |
front 52 52) The reactants needed to produce simple polyamides (nylons) are A) diacids and dialcohols. B) diacids and diamines C) diamines and dialcohols. D) alkenes and catalysts. E) diacids and phosphates. | back 52 Answer: B |
front 53 53) The reactants needed to produce simple polyesters are A) diacids and dialcohols. B) diacids and diamines C) diamines and dialcohols. D) alkenes and catalysts. E) diacids and phosphates | back 53 Answer: A |
front 54  54) The functional groups in the aspirin molecule shown are A) aromatic, carboxylic acid. B) aromatic, ester. C) carboxylic acid, ester. D) aromatic, carboxylic acid, ester. E) amide, aromatic, carboxylic acid. | back 54 Answer: D |
front 55 55) The products of acid hydrolysis of an ester are A) another ester + water. B) alcohol + acid. C) alcohol + water. D) acid + water. E) salt + water. | back 55 Answer: B |
front 56 56) The products of basic hydrolysis of an ester are A) another ester + water. B) alcohol + acid. C) alcohol + water. D) acid + water. E) carboxylate salt + alcohol. | back 56 Answer: E |
front 57  57) What are the major organic products of the reaction shown? A) CH3CH2CH2COOH + HOCH2CH3 B) CH3CH2CH2COO- + +H2OCH2CH3 C) CH3COOH + HOCH2CH2CH2CH3 D) CH3CH2CH2CH2OH + CH3CH2OH E) CH3CH2CH2COOH + CH3COOH | back 57 Answer: A |
front 58 58) Reaction of an ester with a strong base is called A) reverse esterification. B) esterification. C) saponification. D) oxidation. E) condensation. | back 58 Answer: C |
front 59 59) Hydrolysis of the ester ethyl acetate produces A) ethanol and acetic acid. B) butanol. C) butanal and ethanol. D) ethanal and acetic acid. E) butanoic acid. | back 59 Answer: A |
front 60 60) The potassium or sodium salt of a long chain carboxylic acid is called a A) soap. B) triglyceride. C) ester. D) emollient. E) none of the above | back 60 Answer: A |
front 61 61) When an amide is hydrolyzed under acidic conditions, the products are A) an amine and a carboxylic acid. B) an amine and a carboxylate ion. C) an ammonium ion and a carboxylate ion. D) an ammonium ion and a carboxylic acid. E) There is no reaction. | back 61 Answer: D |
front 62 62) The amide produced from pentanoic acid and ammonia is A) N-pentanamide. B) N-methylpentanamide. C) pentanoicamide. D) pentanamide. | back 62 Answer: D |
front 63 63) When an amide is hydrolyzed under basic conditions, the products are A) an amine and a carboxylic acid. B) an amine and a carboxylate ion. C) an ammonium ion and a carboxylate ion. D) an ammonium ion and a carboxylic acid. E) There is no reaction. | back 63 Answer: B |
front 64 64) Hydrolysis of a carboxylic acid ester using base is called ________. A) saponification B) decarboxylation C) detoxification D) alcoholysis E) extraction. | back 64 Answer: A |
front 65  65) Which of the following might be obtained as one of the products in this reaction? | back 65 Answer: B |
front 66  66) What are the products of this reaction? | back 66 Answer: D |
front 67 67) The two monomers used to make Dacron polyester fabric are A) ethylene glycol and mylar. B) terephthalic acid and mylar. C) propylene glycol and mylar. D) ethylene glycol and terephthalic acid. E) none of the above | back 67 Answer: D |
front 68 68) Nylons and proteins are both referred to as polyamides because A) each reactant molecule contains an amide group. B) they are produced by reaction between an amide and an ester. C) they are formed when an acid reacts with ammonia. D) they are produced by basic hydrolysis of an amine. E) they are formed when an acid functional group reacts with an amine functional group. | back 68 Answer: E |
front 69 69) One requirement for the reactants in the formation of polyester is that each molecule contain A) at least one carbon-carbon double bond. B) one aromatic ring. C) at least two functional groups that can form ester linkages. D) an amine group somewhere on the carbon skeleton. E) none of these | back 69 Answer: C |
front 70 70) When an alcohol reacts with phosphoric acid, the product is referred to as a A) phosphate salt. B) phosphate ester. C) phosphate anion. D) pyrophosphate. E) none of the above | back 70 Answer: B |
front 71 71) Phosphate esters are prepared from A) phosphoric acid + alcohol. B) phosphoric acid + ester. C) phosphoric acid + carboxylic acid. D) phosphate + ester. E) phosphate + alcohol. | back 71 Answer: A |