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Chapter 6: Isomers and Stereochemistry
Quizzes
Quiz 1
Quiz 1
This activity contains 12 questions.
How many stereoisomers are possible for 2,5-dimethylhexane?
1
2
3
4
5
Which letter describes
cis
-2-pentene?
S
Z
R
E
M
Which of the following compounds has one chirality center?
1-chloropentane
2-chloropentane
3-chloropentane
1-chloropropane
2-chloropropane
Which of the following compounds has a stereoisomer that is achiral?
1,2-dibromopentane
2,3-dibromopentane
1,2-dibromobutane
1,3-dibromopentane
2,3-dibromobutane
Which of the objects do
not
come as enantiomers?
gloves
shoes
ears
noses
tornadoes
What does
R
stand for in
R/S
nomenclature?
rectus
reflective
reasonable
rear
ridiculous
Which of the following are the correct relative priorities in the
R/S
system?
hydrogen > methyl > ethyl > bromine
ethyl > methyl > hydrogen > bromine
bromine > ethyl > hydrogen > methyl
ethyl > methyl > bromine > hydrogen
bromine > ethyl > methyl > hydrogen
Which are constitutional isomers?
(
R
)-2-chlorobutane and (
S
)-2-chlorobutane
1-bromobutane and 1-chlorobutane
1-butanol and 1-pentanol
1-chlorobutane and 2-chlorobutane
(
E
)-2-hexene and (
Z
)-2-hexene
Select the substituent with the highest priority in the
R/S
system.
–CH
2
CH
2
OH
–CH
2
CH=O
–CH
2
OH
–CH=O
–CH
2
OCH
3
Select the substituent with the highest priority in the
R/S
system.
–CH
2
Br
–CH
2
I
–CHBr
2
–CHCl
2
–CH
2
Cl
Which of the following is
not
a true statement?
All compounds with chirality centers are chiral.
A racemic mixture has no observed specific rotation.
Meso compounds do not rotate the plane of polarized light.
All compounds with two chirality centers have more than two stereoisomers.
All compounds with one chirality center have two stereoisomers.
Identify the correct sequence of devices that comprise a polarimeter.
light source - analyzer - polarizer - sample - viewer
light source - sample - polarizer - analyzer - viewer
light source - analyzer - sample - polarizer - viewer
light source - viewer - polarizer - sample - analyzer
light source - polarizer - sample - analyzer - viewer
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