Question 1

What is the name of this compound?

Accepted Answer

A)  3-ethylheptan-3-ol 
B)  4-propylhexan-3-ol 
C)  4-propylhexan-4-ol 
D)  4-ethylheptan-3-ol 
E)  4-ethylheptan-5-ol 
A)  3-ethylheptan-3-ol 
B)  4-propylhexan-3-ol 
C)  4-propylhexan-4-ol 
D)  4-ethylheptan-3-ol 
E)  4-ethylheptan-5-ol D

Question 2

Match the following structural formulae with their correct names.
-Hexan-2-ol

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)    A

Question 3

Match the following structural formulae with their correct names.
-Heptane 2,4 diol

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)    B

Question 4

Which two of the following compounds are cis-trans isomers?

Accepted Answer

A)    
B)    
C)    
D)    
E)   
F)   
A)    
B)    
C)    
D)    
E)   
F)

Question 5

Which of the following molecules is chiral?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 6

Match the following structural formulae with their correct names.
-Hexan-3-ol

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 7

Match the following structural formulae with their correct names.
-Hexane 2,5 diol

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 8

How many pairs of structural isomers are there here?

Accepted Answer

A)  None 
B)  One 
C)  Two 
D)  Three 
E)  Four 
A)  None 
B)  One 
C)  Two 
D)  Three 
E)  Four

Question 9

Which of the atoms labelled 1-5 in the following molecule is the chirality centre?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 10

What is the name of this compound?

Accepted Answer

A)  Hex-1-ene 
B)  Hex-2-ene 
C)  Hex-3-ene 
D)  Hex-4-ene 
E)  Hex-5-ene 
A)  Hex-1-ene 
B)  Hex-2-ene 
C)  Hex-3-ene 
D)  Hex-4-ene 
E)  Hex-5-ene

Question 11

Which of the atoms labelled 1-5 in the following molecule is the chirality centre?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 12

Which of the following statements about isomers are true? Select all that apply.

Accepted Answer

A)  Structural isomers do not share the same physical and chemical properties. 
B)  Cis-trans isomers share the same physical and chemical properties. 
C)  Enantiomers show different biological properties. 
D)  Structural isomers may belong to different families of organic compound. 
E)  Structural isomers and cis-trans isomers are both types of stereoisomer. 
A)  Structural isomers do not share the same physical and chemical properties. 
B)  Cis-trans isomers share the same physical and chemical properties. 
C)  Enantiomers show different biological properties. 
D)  Structural isomers may belong to different families of organic compound. 
E)  Structural isomers and cis-trans isomers are both types of stereoisomer.

Question 13

Which of the following compounds can exist as a pair of enantiomers? Select any that apply.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 14

Which one of the following amino acids cannot exist as a pair of enantiomers?

Accepted Answer

A)  Valine 
B)  Glycine 
C)  Alanine 
D)  Tyrosine 
E)  Glutamic acid 
A)  Valine 
B)  Glycine 
C)  Alanine 
D)  Tyrosine 
E)  Glutamic acid

Question 15

Which of the following statements about chirality are true? Select all that apply.

Accepted Answer

A)  A chirality centre is a central atom with three different groups attached 
B)  A molecule may have more than one chirality centre 
C)  Chiral molecules lack a plane of symmetry 
D)  A pair of chiral molecules are superimposable mirror images 
E)  Most biological molecules are chiral 
A)  A chirality centre is a central atom with three different groups attached 
B)  A molecule may have more than one chirality centre 
C)  Chiral molecules lack a plane of symmetry 
D)  A pair of chiral molecules are superimposable mirror images 
E)  Most biological molecules are chiral

Question 16

Match the following structural formulae with their correct names.
-Heptan-3-ol

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 17

What is the name of this compound?

Accepted Answer

A)  Pentanoic acid 
B)  Pentanal 
C)  Pentan-4-one 
D)  Methyl butanoate 
E)  Pentan-2-one 
A)  Pentanoic acid 
B)  Pentanal 
C)  Pentan-4-one 
D)  Methyl butanoate 
E)  Pentan-2-one

Question 18

Which of the following compounds is cis hex-2-ene?

Accepted Answer

A)    
B)    
C)    
D)    
E)   
F)   
A)    
B)    
C)    
D)    
E)   
F)

Question 19

How many different structural isomers are there here?

Accepted Answer

A)  Two 
B)  Three 
C)  Four 
D)  Five 
E)  Six 
A)  Two 
B)  Three 
C)  Four 
D)  Five 
E)  Six

Question 20

Which of the following statements about isomers are false? Select all that apply.

Accepted Answer

A)  Enantiomers belong to a broader family of isomers called stereoisomers. 
B)  Enantiomers are also called optical isomers. 
C)  Enantiomers do not share the same physical and chemical properties. 
D)  Enantiomers are asymmetric. 
E)  Enzymes cannot distinguish between enantiomers. 
A)  Enantiomers belong to a broader family of isomers called stereoisomers. 
B)  Enantiomers are also called optical isomers. 
C)  Enantiomers do not share the same physical and chemical properties. 
D)  Enantiomers are asymmetric. 
E)  Enzymes cannot distinguish between enantiomers.

What is the name of this compound?

Match the following structural formulae with their correct names. -Hexan-2-ol

Match the following structural formulae with their correct names. -Heptane 2,4 diol

Which two of the following compounds are cis-trans isomers?

Which of the following molecules is chiral?

Match the following structural formulae with their correct names. -Hexan-3-ol

Match the following structural formulae with their correct names. -Hexane 2,5 diol

How many pairs of structural isomers are there here?

Which of the atoms labelled 1-5 in the following molecule is the chirality centre?

What is the name of this compound?

Which of the atoms labelled 1-5 in the following molecule is the chirality centre?

Which of the following statements about isomers are true? Select all that apply.

Which of the following compounds can exist as a pair of enantiomers? Select any that apply.

Which one of the following amino acids cannot exist as a pair of enantiomers?

Which of the following statements about chirality are true? Select all that apply.

Match the following structural formulae with their correct names. -Heptan-3-ol

What is the name of this compound?

Which of the following compounds is cis hex-2-ene?

How many different structural isomers are there here?

Which of the following statements about isomers are false? Select all that apply.

Chemical Analysis: Characterizing Chemical Compounds

Acids, Bases, and Buffer Solutions: Life in an Aqueous Environment

Kinetics: What Affects the Speed of a Reaction

Equilibria: How Far Do Reactions Go

Energy: What Makes Reactions Go

Reaction Mechanisms: The Chemical Changes That Drive the Chemistry of Life

Chemical Reactions, Oxidation, and Reduction: Bringing Molecules to Life

Metals in Biology: Life Beyond Carbon

Biological Macromolecules: The Infrastructure of Life

Molecular Shape and Structure: Life in Three Dimensions

Functional Groups: Adding Function to the Framework of Life

Hydrocarbons: The Framework of Life

Moles, Concentrations, and Dilutions: Making Sense of Chemical Numbers

Molecular Interactions: Holding It All Together

Compounds and Chemical Bonding: Bringing Atoms Together

Atoms: The Foundations of Life

Introduction: Why Biologists Need Chemistry

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Exam 9: Isomerism: Generating Chemical Variety

What is the name of this compound?

Match the following structural formulae with their correct names. -Hexan-2-ol

Match the following structural formulae with their correct names. -Heptane 2,4 diol

Which two of the following compounds are cis-trans isomers?

Which of the following molecules is chiral?

Match the following structural formulae with their correct names. -Hexan-3-ol

Match the following structural formulae with their correct names. -Hexane 2,5 diol

How many pairs of structural isomers are there here?

Which of the atoms labelled 1-5 in the following molecule is the chirality centre?

What is the name of this compound?

Which of the atoms labelled 1-5 in the following molecule is the chirality centre?

Which of the following statements about isomers are true? Select all that apply.

Which of the following compounds can exist as a pair of enantiomers? Select any that apply.

Which one of the following amino acids cannot exist as a pair of enantiomers?

Which of the following statements about chirality are true? Select all that apply.

Match the following structural formulae with their correct names. -Heptan-3-ol

What is the name of this compound?

Which of the following compounds is cis hex-2-ene?

How many different structural isomers are there here?

Which of the following statements about isomers are false? Select all that apply.

Chemical Analysis: Characterizing Chemical Compounds

Acids, Bases, and Buffer Solutions: Life in an Aqueous Environment

Kinetics: What Affects the Speed of a Reaction

Equilibria: How Far Do Reactions Go

Energy: What Makes Reactions Go

Reaction Mechanisms: The Chemical Changes That Drive the Chemistry of Life

Chemical Reactions, Oxidation, and Reduction: Bringing Molecules to Life

Metals in Biology: Life Beyond Carbon

Biological Macromolecules: The Infrastructure of Life

Molecular Shape and Structure: Life in Three Dimensions

Functional Groups: Adding Function to the Framework of Life

Hydrocarbons: The Framework of Life

Moles, Concentrations, and Dilutions: Making Sense of Chemical Numbers

Molecular Interactions: Holding It All Together

Compounds and Chemical Bonding: Bringing Atoms Together

Atoms: The Foundations of Life

Introduction: Why Biologists Need Chemistry

Filters