Welcome to the Quiz!
This quiz contains 17 questions from a mix of 1 subtopics.
Which of the following best describes isomers?
molecules with the same molecular formula but different arrangements of atoms
molecules with the same molecular formula and the same arrangement of atoms
molecules with different molecular formulas but the same arrangement of atoms
molecules with different molecular formulas and different arrangements of atoms
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Which type of structural isomer differs in the carbon skeleton arrangement?
chain isomers
positional isomers
functional group isomers
stereoisomers
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In which type of structural isomer is the functional group attached at different carbon atoms?
chain isomers
functional group isomers
stereoisomers
positional isomers
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Which type of structural isomer has atoms forming different functional groups?
positional isomers
chain isomers
functional group isomers
stereoisomers
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How many chain isomers are possible for butane (C4H10)?
3
1
4
2
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How many distinct positional isomers are there for chloropentane (C5H11Cl)?
1
2
3
4
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Which of the following is NOT a functional group isomer of C3H6O?
propanone
propanal
propan-1-ol
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What is the primary reason for the restricted rotation around carbon-carbon double bonds in alkenes?
the free rotation of single bonds in the molecule
the planar arrangement of atoms connected to the doubly bonded carbons
the stable overlapping of p orbitals forming the π bond
the presence of single bonds in the molecule
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Assign the correct configuration to the stereoisomer of 2-chloro-3-ethylhex-2-ene shown below.
Z-
trans-
cis-
E-
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In the E-Z system, what does the term "E" represent?
groups of interest are positioned across from each other on opposite sides of the double bond
groups of interest are on the same side of the double bond
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In the case of 1-bromo-2-chloroethene, which atoms have the highest priority on each side of the double bond?
Br and H
Br and Cl
H and Cl
H and H
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When can the cis-trans naming system be used as an alternative to the E-Z system for stereoisomers?
when the molecule has only three distinct groups
when the double-bonded carbons share at least one identical group
when the groups attached to the double-bonded carbons are completely different
when the highest-priority groups are on opposite sides of the double bond
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Which of the following statements about the cis-trans system is true?
Z-but-2-ene equates to cis-but-2-ene
E-but-2-ene equates to cis-but-2-ene
trans isomers have identical groups on the same side
cis isomers have identical groups on opposite sides
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Which of the following best describes stereoisomers?
compounds with different molecular formulas but the same spatial arrangement of atoms
compounds with the same molecular formula but different connectivity of atoms
compounds with different molecular formulas and different spatial arrangements of atoms
compounds with the same molecular formula and connectivity of atoms but different spatial arrangements of atoms
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In the case of 1-bromo-1-fluoro-propene, which groups of atoms have the highest priority either side of the double bond?
Br and H
F and H
F and CH3
Br and CH3
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Which of the following statements about the cis-trans system is true?
(Select all that apply).
Z-hex-3-ene equates to cis-hex-3-ene
E-hex-3-ene equates to trans-hex-3-ene
E-hex-3-ene equates to cis-hex-3-ene
Z-hex-3-ene equates to trans-hex-3-ene
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The Cahn-Ingold-Prelog rules help in assigning the E-Z configuration to .
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