Lecture

Created by

krabby patty

Cards (96)

The functional group present in carboxylic acids is called a
a ) carbonyl group
b ) carboxyl group
c ) carboxylate group
d ) carbohydroxyl group
b
Which of the following statements concerning the structure of the functional group present in carboxylic acids is incorrect?
a ) Two oxygen atoms are present.
b ) A carbon-oxygen single bond and a carbon-oxygen double bond are present.
c ) A carbon-hydrogen bond are present.
d ) An oxygen-hydrogen bond is present.
c
The common names for the C2 mono- and dicarboxylic acids are, respectively,
a ) formic acid and acetic acid
b ) acetic acid and formic acid
c ) oxalic acid and acetic acid
d ) acetic acid and oxalic acid
d
The common name for the C6 unbranched dicarboxylic acid is
a ) pimelic acid
b ) adipic acid
c ) oxalic acid
d ) succinic acid
b
Which of the following statements concerning the properties of carboxylic acids is incorrect?
a ) Short-chain monocarboxylic acids are liquids at room temperature.
b ) Carboxylic acids have higher boiling points than alcohols of similar molecular mass.
c ) Carboxylic acids cannot hydrogen bond to water.
d ) Carboxylic acids can hydrogen bond to each other.
c
Carboxylic acids may be prepared by oxidation of
a ) ketones
b ) secondary alcohols
c ) primary alcohols
d ) tertiary alcohols
c
Which of the following statements concerning the acid strength of carboxylic acids is correct?
a ) All are weak acids.
b ) All are strong acids.
c ) Aromatic acids are strong and nonaromatic acids are weak.
d ) Unbranched acids are weak and branched acids are strong.
a
Which of the following statements concerning carboxylate ions is correct?
a ) They may be negatively or positively charged.
b ) Carboxylate ions formed from dicarboxylic acids carry a -2 charge.
c ) They contain more carbon atoms than their parent acids.
d ) They are mostly positively charged.
b
Carboxylic acid salts may be converted to their "parent" carboxylic acids by reacting them with
a ) a weak base such as ammonia
b ) a strong acid such as HBr
c ) an alcohol such as ethanol
d ) a phenol
b
Which of the following is a general structural representation for an ester?
a ) R-C(=O)-C-H
b ) R-C(=O)-R
c ) R-C(=O)-O-R
d ) R-C(=O)-H
c
The IUPAC name for the compound CH3-CH(-CH3)-CH2-C(=O)-OH is
a ) 2-methyl-4-butanoic acid
b ) 2-methyl-4-pentanoic acid
c ) 3-methylbutanoic acid
d ) 3-methylpentanoic acid
c
Esters are produced through the reaction of
a ) a ketone and an ether
b ) an alcohol and a carboxylic acid
c ) a carboxylic acid and an aldehyde
d ) a ketone and an alcohol
b
The IUPAC name for the ester CH3-CH2-CH2-C(=O)-O-CH3 is
a ) butyl methanoate
b ) methyl butanoate
c ) methyl butyl ester
d ) methyl carboxybutane
b
The ester obtained by reacting methanol and ethanoic acid is called
a ) methyl ethane
b ) methyl ethanoate
c ) ethyl methanoate
d ) ethane methanoate
b
When an ester undergoes saponification, one reaction product is
a ) water
b ) a carboxylic acid
c ) a ketone
d ) a carboxylic acid salt
d
Which of the following statements concerning acid anhydrides is incorrect?
a ) They undergo hydrolysis to produce the parent carboxylic acid.
b ) They are generally less reactive than the corresponding acid chloride.
c ) They have structures in which three oxygen atoms are present.
d ) They are produced by reacting two carboxylic acids with each other.
d
Which of the following is a correct notation for the carboxylic acid functional group?
a ) -C(=O)-OH
b ) -COOH
c ) -CO2H
d ) more than one correct response
e) no correct response
d
Which of the following carboxylic acids is paired with its correct IUPAC name?
a ) 2-chloro-4-butanoic acid
b ) 2-chlorobutanoic acid
c ) 2,3-dichloro-1-butanoic acid
d ) more than one correct response
e) no correct response
b
In which of the following pairs of carboxylic acids are both members of the pair dicarboxylic acids?
a ) malonic acid and succinic acid
b ) glutaric acid and butyric acid
c ) oxalic acid and acetic acid
d ) more than one correct response
e ) no correct response
a
Which of the following functional groups is always found at the end of a carbon chain?
a ) aldehyde
b ) carboxylic acid
c ) ketone
d ) more than one correct response
e ) no correct response
d
Which of the following statements concerning the boiling points of carboxylic acids is correct?
a ) They are higher than those of corresponding alcohols.
b ) They are lower than those of corresponding alkanes.
c ) They are lower than those of corresponding aldehydes.
d ) more than one correct response
e ) no correct response
a
Which of the following compounds could not be oxidized to a carboxylic acid?
a ) propanal
b ) 2-methyl-1-propanol
c ) 2-methyl-2-propanol
d ) more than one correct response
e ) no correct response
c
In which of the following pairs of compounds does the first listed compound have a greater solubility in water than the second listed compound?
a ) hexanoic acid, methanoic acid
b ) sodium butanoate, butanoic acid
c ) pentanoic acid, potassium pentanoate
d ) more than one correct response
e ) no correct response
b
Which of the following pairings of ester common and IUPAC names is correct?
a ) ethyl propionate and propyl ethanoate
b ) propyl acetate and propyl ethanoate
c ) ethyl butyrate and butyl ethanoate
d ) more than one correct response
e ) no correct response
b
Which of the following compounds is a constitutional isomer of ethyl ethanoate?
a ) methyl methanoate
b ) ethyl propanoate
c ) butanoic acid
d ) more than one correct response
e ) no correct response
c
Which of the following types of inorganic esters would contain two oxygen-carbon single bonds?
a ) diphosphate monoester
b ) phosphate triester
c ) diphosphate diester
d ) more than one correct response
e ) no correct response
c
Acid + ? --- carboxylate ion + H3O^+
a ) water
b ) base in water
c ) alcohol
d ) carboxylic acid
a
Acid + ? --- acid salt +H2O
a ) water
b ) base in water
c ) alcohol
d ) carboxylic acid
b
Acid + ? --- ester + H2O
a ) water
b ) base in water
c ) alcohol
d ) carboxylic acid
c
Ester + ? --- acid + alcohol
a ) water
b ) base in water
c ) alcohol
d ) carboxylic acid
a
Fumaric acid, Succinic acid
a ) Both are dicarboxylic acids.
b ) Both are C3 acids.
c ) Both are monohydroxy acids.
d ) Both are unsubstituted monocarboxylic acids.
a
Citric acid, Lactic acid
a ) Both are dicarboxylic acids.
b ) Both are C3 acids.
c ) Both are monohydroxy acids.
d ) Both are unsubstituted monocarboxylic acids.
c
Glyceric acid, Pyruvic acid
a ) Both are dicarboxylic acids.
b ) Both are C3 acids.
c ) Both are monohydroxy acids.
d ) Both are unsubstituted monocarboxylic acids.
b
Valeric acid, Caproic acid
a ) Both are dicarboxylic acids.
b ) Both are C3 acids.
c ) Both are monohydroxy acids.
d ) Both are unsubstituted monocarboxylic acids.
d
Oxalic acid, Glutaric acid
a ) Both are dicarboxylic acids.
b ) Both are C3 acids.
c ) Both are monohydroxy acids.
d ) Both are unsubstituted monocarboxylic acids.
a
The elements present in a secondary amine with a phenyl group are
a ) carbon and nitrogen
b ) carbon, nitrogen, and hydrogen
c ) carbon, nitrogen, and oxygen
d ) carbon, nitrogen, hydrogen, and oxygen
b
The compound CH3-CH2-NH-CH3 is an example of
a ) primary amine
b ) secondary amine
c ) tertiary amine
d ) primary amide
b
Which of the following statements concerning cyclic amines is correct?
a ) They are always heterocyclic compounds.
b ) They are always aromatic compounds.
c ) They can be tertiary but never primary or secondary amines.
d ) They are never encountered as a naturally-occurring compound.
a
The IUPAC name for the compound CH3-CH(-CH3)-CH2-CH(-NH2)-CH3 is
a ) 2-methylpentanamine
b ) 4-methylpentanamine
c ) 2-methyl-4-pentanamine
d ) 4-methyl-2-pentanamine
d
The common name for the compound CH3-CH2-CH2-NH2 is
a ) propylamine
b ) N-propylamine
c ) aminopropane
d ) N-aminopropane
a