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Home Q & A Board Biology-Related Homework Help Biochemistry
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Which of the following is true of the non-cyclic portion of vitamin A?
Which of the following is true of the non-cyclic portion of vitamin A?
Which of the following is true of the non-cyclic portion of vitamin A?
 a. It contains 4 double bonds, all in the cis configuration.
  b. It contains 4 double bonds, all in the trans configuration.
  c. It contains 4 double bonds, whi
jennjenn563   33   1 Reply
6 years ago
How many stereoisomers are possible for 2,4,6-nonatriene?
How many stereoisomers are possible for 2,4,6-nonatriene?
How many stereoisomers are possible for 2,4,6-nonatriene?
 a. 2 c. 8
  b. 4 d. 16
sophie0209   51   1 Reply
6 years ago
How many stereoisomers are possible for 1,4,7-octatriene?
How many stereoisomers are possible for 1,4,7-octatriene?
How many stereoisomers are possible for 1,4,7-octatriene?
 a. 2 c. 8
  b. 4 d. 16
Greenspotsock   59   1 Reply
6 years ago
How many stereoisomers are possible for 2,4-heptadiene?
How many stereoisomers are possible for 2,4-heptadiene?
How many stereoisomers are possible for 2,4-heptadiene?
 a. 2 c. 7
  b. 4 d. 8
Abessesen   34   1 Reply
6 years ago
How many stereoisomers are possible for 1,4-heptadiene?
How many stereoisomers are possible for 1,4-heptadiene?
How many stereoisomers are possible for 1,4-heptadiene?
 a. 2 c. 7
  b. 4 d. 8
bubblegum123   33   1 Reply
6 years ago
Cis-trans isomers exist for which of the following?
Cis-trans isomers exist for which of the following?
Cis-trans isomers exist for which of the following?
 a. 1,2-dimethylcyclopentene c. 3,5-dimethylcyclopentene
  b. 2,3-dimethylcyclopentene d. All of them exist.
Pooh bear   55   1 Reply
6 years ago
How many cycloalkenes have the molecular formula C4H6?
How many cycloalkenes have the molecular formula C4H6?
How many cycloalkenes have the molecular formula C4H6?
 a. 1 c. 3
  b. 2 d. 4
alexiswells   35   1 Reply
6 years ago
Including cis-trans isomers, how many different alkenes have the molecular formula C5H10?
Including cis-trans isomers, how many different alkenes have the molecular formula C5H10?
Including cis-trans isomers, how many different alkenes have the molecular formula C5H10?
 a. 4 c. 6
  b. 5 d. 7
Abessesen   43   1 Reply
6 years ago
Including cis-trans isomers, how many different alkenes have the molecular formula C4H8?
Including cis-trans isomers, how many different alkenes have the molecular formula C4H8?
Including cis-trans isomers, how many different alkenes have the molecular formula C4H8?
 a. 2 c. 4
  b. 3 d. 5
ugai_kyut   65   1 Reply
6 years ago
Which of the following compounds, all of which have the molecular formula C6H12, does not have cis ...
Which of the following compounds, all of which have the molecular formula C6H12, does not have cis ...
Which of the following compounds, all of which have the molecular formula C6H12, does not have cis and trans isomers?
 a. 4-methyl-2-pentene
  b. 2-methyl-1-pentene
  c. 3-methyl-2-pentene
  d. None of them, they all have cis-tra
hessar3   56   1 Reply
6 years ago
Which of the following compounds, all of which have the molecular formula C6H12, has cis and trans ...
Which of the following compounds, all of which have the molecular formula C6H12, has cis and trans ...
Which of the following compounds, all of which have the molecular formula C6H12, has cis and trans isomers?
 a. 2-methyl-1-pentene c. 3-methyl-2-pentene
  b. 2-methyl-2-pentene d. They all have cis-trans isomers.
Larrhea   61   1 Reply
6 years ago
Cis-trans isomers exist for which of the following molecules, all of which have the molecular ...
Cis-trans isomers exist for which of the following molecules, all of which have the molecular ...
Cis-trans isomers exist for which of the following molecules, all of which have the molecular formula C5H10?
 a. 1-pentene c. 2-methyl-2-butene
  b. 2-methyl-1-butene d. 1,2-dimethylcyclopropane
kekebab001   60   1 Reply
6 years ago
Which of the following, all of which have the molecular formula C5H10, has cis and trans isomers? ...
Which of the following, all of which have the molecular formula C5H10, has cis and trans isomers? ...
Which of the following, all of which have the molecular formula C5H10, has cis and trans isomers?
 a. 2-methyl-1-butene c. 2-pentene
  b. 2-methyl-2-butene d. none of them
Revolver38   40   1 Reply
6 years ago
Cis-trans isomers do not exist for which of the following compounds, all of which have the molecular ...
Cis-trans isomers do not exist for which of the following compounds, all of which have the molecular ...
Cis-trans isomers do not exist for which of the following compounds, all of which have the molecular formula C3H4Br2?
 a. 1,1-dibromopropene
  b. 1,2-dibromopropene
  c. 1,3-dibromopropene
  d. They do not exist for any of these
yjuhen   68   1 Reply
megabyte7
6 years ago
Cis-trans isomers exist for which of the following molecules, all of which have the molecular ...
Cis-trans isomers exist for which of the following molecules, all of which have the molecular ...
Cis-trans isomers exist for which of the following molecules, all of which have the molecular formula C3H5Br?
 a. 1-bromopropene c. 3-bromopropene
  b. 2-bromopropene d. none of these
crownlessking   72   1 Reply
megabyte7
6 years ago
What is the name of the lightest hydrocarbon which has cis and trans isomers?
What is the name of the lightest hydrocarbon which has cis and trans isomers?
What is the name of the lightest hydrocarbon which has cis and trans isomers?
 a. 1-butene c. 1,2-dimethylcyclopropane
  b. 2-butene d. propene
adamsnaya   46   1 Reply
6 years ago
A student wanted to use the branched groups, isobutyl, sec-butyl, and tert-butyl when naming ...
A student wanted to use the branched groups, isobutyl, sec-butyl, and tert-butyl when naming ...
A student wanted to use the branched groups, isobutyl, sec-butyl, and tert-butyl when naming alkenes, but was told not to. What is the correct IUPAC name for the compound the student called sec-butylethene?
 a. 4-methyl-1-pentene c. 3,3-dimethy
Jovaini   73   1 Reply
6 years ago
A student named a particular compound 2-ethyl-3-methyl-2-butene. Assuming that the student's choice ...
A student named a particular compound 2-ethyl-3-methyl-2-butene. Assuming that the student's choice ...
A student named a particular compound 2-ethyl-3-methyl-2-butene. Assuming that the student's choice actually corresponded to the correct distribution of the double bond and the substituents, what is the correct IUPAC name for this compound?
 a.
Revolver38   49   1 Reply
6 years ago
A student named a particular compound 2-propyl-1-butene. Assuming that the student's choice ...
A student named a particular compound 2-propyl-1-butene. Assuming that the student's choice ...
A student named a particular compound 2-propyl-1-butene. Assuming that the student's choice actually corresponded to the correct distribution of the double bond and the substituents, what is the correct IUPAC name for this compound?
 a. 2-propy
98lindsey   35   1 Reply
6 years ago
Which of the following is true of the common names of low molecular weight alkenes and alkynes?
Which of the following is true of the common names of low molecular weight alkenes and alkynes?
Which of the following is true of the common names of low molecular weight alkenes and alkynes?
 a. The common names of all alkenes end in ene, and those of alkynes end in yne.
  b. The common names of all alkenes and all alkynes end in en
jayfro   52   1 Reply
6 years ago
Which of the following is true in the IUPAC system for naming alkenes?
Which of the following is true in the IUPAC system for naming alkenes?
Which of the following is true in the IUPAC system for naming alkenes?
 a. The alkene is always named based on the longest carbon chain.
  b. the position of the double bond is always given the lowest possible number.
  c. The positio
alexiswells   61   1 Reply
6 years ago
Which of the following is true in the IUPAC system for naming alkenes?
Which of the following is true in the IUPAC system for naming alkenes?
Which of the following is true in the IUPAC system for naming alkenes?
 a. The alkene is always named based on the longest carbon chain.
  b. The position of the double bond is always given the highest possible number.
  c. The positi
Jnortontruvisio   57   1 Reply
6 years ago
Which of the following is true of cis and trans isomers?
Which of the following is true of cis and trans isomers?
Which of the following is true of cis and trans isomers?
 a. they have the same structural connectivity
  b. they have the same physical properties
  c. both a and b
  d. neither a nor b
ksultz   54   1 Reply
6 years ago
Cis-trans isomerism is associated with the presence of which of the following?
Cis-trans isomerism is associated with the presence of which of the following?
Cis-trans isomerism is associated with the presence of which of the following?
 a. double bonds c. both a and b
  b. ring systems d. neither a nor b
tarapratt95   45   1 Reply
6 years ago
Which of the following structural features is never associated with cis-trans isomerism?
Which of the following structural features is never associated with cis-trans isomerism?
Which of the following structural features is never associated with cis-trans isomerism?
 a. double bonds
  b. ring systems
  c. triple bonds
  d. None, they are all associated with cis-trans isomerism.
jennjenn563   78   1 Reply
6 years ago
In alkenes there are four groups bonded to the carbons which constitute the carbon-carbon double ...
In alkenes there are four groups bonded to the carbons which constitute the carbon-carbon double ...
In alkenes there are four groups bonded to the carbons which constitute the carbon-carbon double bond. Which of the following situations produces cis-trans isomerism?
 a. when all four groups are the same
  b. when the two groups bonded to
Linalovespickle   75   1 Reply
6 years ago
In alkenes there are four groups bonded to the carbons which constitute the carbon-carbon double ...
In alkenes there are four groups bonded to the carbons which constitute the carbon-carbon double ...
In alkenes there are four groups bonded to the carbons which constitute the carbon-carbon double bond. Which of the following situations produces cis-trans isomerism?
 a. when all four groups are the same
  b. when the two groups on one at
nclariceb   84   1 Reply
6 years ago
Which of the following molecules has a linear structure?
Which of the following molecules has a linear structure?
Which of the following molecules has a linear structure?
 a. acetylene c. ethane
  b. benzene d. ethylene
kristina92293   78   1 Reply
6 years ago
Which of the following is true of ethylene?
Which of the following is true of ethylene?
Which of the following is true of ethylene?
 a. It is not a very important industrial chemical.
  b. It is present in large amounts in natural gas.
  c. Its most important use is as a fuel.
  d. The vast majority of ethylene is p
hiufwsiuefbwe   24   1 Reply
6 years ago
Which of the following is the starting material derived from natural gas that is used for the ...
Which of the following is the starting material derived from natural gas that is used for the ...
Which of the following is the starting material derived from natural gas that is used for the production of ethylene?
 a. acetylene c. ethane
  b. benzene d. methane
jayfro   30   1 Reply
6 years ago
Which organic compound is produced in the largest amount by the chemical industry?
Which organic compound is produced in the largest amount by the chemical industry?
Which organic compound is produced in the largest amount by the chemical industry?
 a. acetylene c. ethane
  b. benzene d. ethylene
alshernandez   43   1 Reply
6 years ago
Given a non-cyclic alkane, a non-cyclic alkene, and a non-cyclic alkyne, each of which contains six ...
Given a non-cyclic alkane, a non-cyclic alkene, and a non-cyclic alkyne, each of which contains six ...
Given a non-cyclic alkane, a non-cyclic alkene, and a non-cyclic alkyne, each of which contains six carbon atoms, which compound will contain the fewest hydrogen atoms?
 a. the alkane
  b. the alkene
  c. the alkyne
  d. It is no
kristina92293   104   1 Reply
6 years ago
Given an alkane, an alkene, and an alkyne, each of which contains two carbon atoms, which compound ...
Given an alkane, an alkene, and an alkyne, each of which contains two carbon atoms, which compound ...
Given an alkane, an alkene, and an alkyne, each of which contains two carbon atoms, which compound will contain the fewest hydrogen atoms?
 a. the alkane
  b. the alkene
  c. the alkyne
  d. None, they all contain the same number
redheadprincess   91   1 Reply
6 years ago
Given an alkane, an alkene, and an alkyne, each of which contains two carbon atoms, which compound ...
Given an alkane, an alkene, and an alkyne, each of which contains two carbon atoms, which compound ...
Given an alkane, an alkene, and an alkyne, each of which contains two carbon atoms, which compound will contain most hydrogen atoms?
 a. the alkane
  b. the alkene
  c. the alkyne
  d. None, they all contain the same number of hy
hawkins1346   77   1 Reply
6 years ago
Which of the following compounds is a natural ripening agent for fruits?
Which of the following compounds is a natural ripening agent for fruits?
Which of the following compounds is a natural ripening agent for fruits?
 a. ethane c. acetylene
  b. ethylene d. none of these
Revolver38   79   1 Reply
6 years ago
Which class of compounds is not widespread in nature, and has little importance in biochemistry?
Which class of compounds is not widespread in nature, and has little importance in biochemistry?
Which class of compounds is not widespread in nature, and has little importance in biochemistry?
 a. alkanes c. alkynes
  b. alkenes d. arenes
Jnortontruvisio   46   1 Reply
6 years ago
Which of the following is the characteristic feature of all alkynes?
Which of the following is the characteristic feature of all alkynes?
Which of the following is the characteristic feature of all alkynes?
 a. the presence of one or more carbon-carbon double bonds
  b. the presence of one or more carbon-carbon triple bonds
  c. the presence of at least one carbon-carbo
motee   57   1 Reply
6 years ago
Which of the following is the characteristic feature of all alkenes?
Which of the following is the characteristic feature of all alkenes?
Which of the following is the characteristic feature of all alkenes?
 a. the presence of one or more carbon-carbon double bonds
  b. the presence of one or more carbon-carbon triple bonds
  c. the presence of at least one carbon-carbo
Pooh bear   43   1 Reply
6 years ago
The reaction of oxygen with an unsaturated fatty acid gives which of the following products?
The reaction of oxygen with an unsaturated fatty acid gives which of the following products?
The reaction of oxygen with an unsaturated fatty acid gives which of the following products?
 a. a phenol c. vitamin E
  b. a hydroperoxide d. none of the above
Jovaini   32   1 Reply
6 years ago
How many unpaired electrons are present in an oxygen molecule?
How many unpaired electrons are present in an oxygen molecule?
How many unpaired electrons are present in an oxygen molecule?
 a. 0 c. 2
  b. 1 d. 4
Griffinw42   74   1 Reply
6 years ago
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