Question 1

Pentane has ________ structural isomers.

Accepted Answer

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

Question 2

The doubly ionized form of an amino acid is called a(n)________.

Accepted Answer

The answer of The doubly ionized form of an amino...

Question 3

Cyclohexane has ________ fewer hydrogens than n-hexane.

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 4 
A) 0 
B) 1 
C) 2 
D) 3 
E) 4

Question 4

Which one of the following could be a non-branched alkene?

Accepted Answer

A) C6H5 
B) C7H9 
C) C7H14 
D) C2H6 
E) C9H20 
A) C6H5 
B) C7H9 
C) C7H14 
D) C2H6 
E) C9H20

Question 5

The general formula of an ester is ________.

Accepted Answer

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

Question 6

Which one of the following is not an alcohol?

Accepted Answer

A) acetone 
B) glycerol 
C) ethanol 
D) cholesterol 
E) ethylene glycol 
A) acetone 
B) glycerol 
C) ethanol 
D) cholesterol 
E) ethylene glycol

Question 7

The basic building block of nucleic acids is the ________.

Accepted Answer

A) nucleoside 
B) nucleotide 
C) ester linkage 
D) nitrogen base 
E) phosphoric acid 
A) nucleoside 
B) nucleotide 
C) ester linkage 
D) nitrogen base 
E) phosphoric acid

Question 8

Why is cyclopropane more reactive than propane?

Accepted Answer

The small ring of cyclopropane

Question 9

Which one of the following could be a straight-chain alkane?

Accepted Answer

A) C9H20 
B) C3H3 
C) C4H6 
D) C5H4 
E) C3H6 
A) C9H20 
B) C3H3 
C) C4H6 
D) C5H4 
E) C3H6

Question 10

The principal difference between fructose and glucose is that ________.

Accepted Answer

A) fructose is a disaccharide and glucose is a monosaccharide 
B) fructose is a monosaccharide and glucose is a disaccharide 
C) fructose is chiral and glucose is not 
D) glucose is chiral and fructose is not 
E) fructose is a ketone sugar and glucose is an aldehyde sugar 
A) fructose is a disaccharide and glucose is a monosaccharide 
B) fructose is a monosaccharide and glucose is a disaccharide 
C) fructose is chiral and glucose is not 
D) glucose is chiral and fructose is not 
E) fructose is a ketone sugar and glucose is an aldehyde sugar

Question 11

The double helix of DNA is stabilized mainly by ________.

Accepted Answer

A) ionic bonds 
B) covalent bonds 
C) ion-dipole bonds 
D) ester bonds 
E) hydrogen bonds 
A) ionic bonds 
B) covalent bonds 
C) ion-dipole bonds 
D) ester bonds 
E) hydrogen bonds

Question 12

The aromas of different fruit are due to the chemical compounds known as ________.

Accepted Answer

The answer of The aromas of different fruit are due...

Question 13

A carbon with three or more attached groups will be chiral.

Accepted Answer

A) True 
 B)False

Question 14

How many chiral centers are there in CH3CHClCH2Cl?

Accepted Answer

A) 1 
B) 0 
C) 3 
D) 2 
E) 4 
A) 1 
B) 0 
C) 3 
D) 2 
E) 4

Question 15

If each of the following represents an alkane,and a carbon atom is located at each vertex with the proper number of hydrogen atoms also bonded to it,which one is the most reactive?

Accepted Answer

A)    
B)    
C)    
D)    
E) They are all equally reactive since they are all alkanes. 
A)    
B)    
C)    
D)    
E) They are all equally reactive since they are all alkanes.

Question 16

Which structure below represents an ether?

Accepted Answer

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

Question 17

In the reaction of nitric acid with benzene,which isomer is formed when a second nitro group is substituted?

Accepted Answer

The answer of In the reaction of nitric acid with...

Question 18

The monomers of nucleic acids,called nucleotides,consist of three parts.These are ________.

Accepted Answer

phosphoric acid,a fi

Question 19

How many chiral carbon atoms does the neopentane (2,2 - dimethylpropane)have?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 4 
A) 0 
B) 1 
C) 2 
D) 3 
E) 4

Question 20

The addition of HBr to 2-butene produces ________.

Accepted Answer

A) 1-bromobutane 
B) 2-bromobutane 
C) 1,2-dibromobutane 
D) 2,3-dibromobutane 
E) no reaction 
A) 1-bromobutane 
B) 2-bromobutane 
C) 1,2-dibromobutane 
D) 2,3-dibromobutane 
E) no reaction

Exam 24: The Chemistry of Life: Organic and Biological Chemistry

Pentane has ________ structural isomers.

The doubly ionized form of an amino acid is called a(n)________.

Cyclohexane has ________ fewer hydrogens than n-hexane.

Which one of the following could be a non-branched alkene?

The general formula of an ester is ________.

Which one of the following is not an alcohol?

The basic building block of nucleic acids is the ________.

Why is cyclopropane more reactive than propane?

Which one of the following could be a straight-chain alkane?

The principal difference between fructose and glucose is that ________.

The double helix of DNA is stabilized mainly by ________.

The aromas of different fruit are due to the chemical compounds known as ________.

A carbon with three or more attached groups will be chiral.

How many chiral centers are there in CH3CHClCH2Cl?

If each of the following represents an alkane,and a carbon atom is located at each vertex with the proper number of hydrogen atoms also bonded to it,which one is the most reactive?

Which structure below represents an ether?

In the reaction of nitric acid with benzene,which isomer is formed when a second nitro group is substituted?

The monomers of nucleic acids,called nucleotides,consist of three parts.These are ________.

How many chiral carbon atoms does the neopentane (2,2 - dimethylpropane)have?

The addition of HBr to 2-butene produces ________.

Introduction: Matter, energy, and Measurement

Atoms, molecules, and Ions

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

Filters

How many chiral centers are there in CH₃CHClCH₂Cl?