Welcome to the Quiz!
This quiz contains 10 questions from a mix of 1 subtopics.
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 presence of single bonds in the molecule
the stable overlapping of p orbitals forming the π bond
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Assign the correct configuration to the stereoisomer of 2-chloro-3-ethylhex-2-ene shown below.
E-
cis-
trans-
Z-
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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 Cl
Br and H
H and H
H and Cl
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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 double-bonded carbons share at least one identical group
when the groups attached to the double-bonded carbons are completely different
when the molecule has only three distinct groups
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?
E-but-2-ene equates to cis-but-2-ene
cis isomers have identical groups on opposite sides
Z-but-2-ene equates to cis-but-2-ene
trans isomers have identical groups on the same side
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Which of the following best describes stereoisomers?
compounds with the same molecular formula and connectivity of atoms but different spatial arrangements of atoms
compounds with different molecular formulas and different spatial arrangements of atoms
compounds with different molecular formulas but the same spatial arrangement of atoms
compounds with the same molecular formula but different connectivity 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 CH3
F and H
F and CH3
Br and H
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Which of the following statements about the cis-trans system is true?
(Select all that apply).
E-hex-3-ene equates to trans-hex-3-ene
Z-hex-3-ene equates to cis-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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