Question 1

Which compound is a saturated hydrocarbon?

Accepted Answer

A) benzene 
B) cycloheptene 
C) 2-methylhexane 
D) butyne 
A) benzene 
B) cycloheptene 
C) 2-methylhexane 
D) butyne

Question 2

Which compound will exhibit cis-trans isomerism?

Accepted Answer

A) 1,2-dichloroethane 
B) 1,2-dichloroethene 
C) dichloroethyne 
D) ethylene 
A) 1,2-dichloroethane 
B) 1,2-dichloroethene 
C) dichloroethyne 
D) ethylene

Question 3

Which of the following pairs have the most similar chemical properties?

Accepted Answer

A) alkynes and esters 
B) alkenes and aromatics 
C) amines and carboxylic acids 
D) ketones and aldehydes 
A) alkynes and esters 
B) alkenes and aromatics 
C) amines and carboxylic acids 
D) ketones and aldehydes

Question 4

What is the IUPAC name for the following compound?

Accepted Answer

A) 1,3-dimethyl-1-ethylhexane 
B) 4,6-dimethyl-6-ethylhexane 
C) 3,5-dimethyloctane 
D) sec-hexylbutane 
A) 1,3-dimethyl-1-ethylhexane 
B) 4,6-dimethyl-6-ethylhexane 
C) 3,5-dimethyloctane 
D) sec-hexylbutane

Question 5

Based on the structure of its side chains,the amino acid shown below can be classified as

Accepted Answer

A) acidic. 
B) basic. 
C) neutral,non-polar. 
D) neutral,polar. 
A) acidic. 
B) basic. 
C) neutral,non-polar. 
D) neutral,polar.

Question 6

Which of the following statements about properties of organic compounds is not correct?

Accepted Answer

A) Most organic compounds are not soluble in water. 
B) Most organic compounds do not conduct electricity. 
C) Organic compounds have higher melting and boiling points than ionic compounds. 
D) Organic compounds have weak intermolecular forces. 
A) Most organic compounds are not soluble in water. 
B) Most organic compounds do not conduct electricity. 
C) Organic compounds have higher melting and boiling points than ionic compounds. 
D) Organic compounds have weak intermolecular forces.

Question 7

The following structure represents a butyl group.

Accepted Answer

A) normal 
B) secondary 
C) tertiary 
D) quaternary 
A) normal 
B) secondary 
C) tertiary 
D) quaternary

Question 8

The C-Br bond in CH3Br is a ________ (nonpolar,polar)covalent bond with a ________ (δ+,δ-)charge on the carbon atom and a ________ (δ+,δ-)charge on the bromine atom.

Accepted Answer

Question 9

Which statement below is false concerning nomenclature rules for alkanes?

Accepted Answer

A) Carbon atoms are numbered starting with the atom farthest from the branching point. 
B) Each branching group is assigned a number referring to its point of attachment in the parent chain. 
C) The name of the alkane is written as a single word. 
D) The parent name is taken from the longest continuous chain of carbon atoms. 
A) Carbon atoms are numbered starting with the atom farthest from the branching point. 
B) Each branching group is assigned a number referring to its point of attachment in the parent chain. 
C) The name of the alkane is written as a single word. 
D) The parent name is taken from the longest continuous chain of carbon atoms.

Question 10

To which family does this organic compound belong?

Accepted Answer

A) amide 
B) amine 
C) carboxylic acid 
D) ester 
A) amide 
B) amine 
C) carboxylic acid 
D) ester

Question 11

Some of the products from reaction of bromine and propane are shown below.(The hydrogen atoms are not shown in the structures. )How many are identical structures?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) All are isomers of each other. 
A) 2 
B) 3 
C) 4 
D) All are isomers of each other.

Question 12

(CH3)3C- represents a ________ (normal,secondary,tertiary)butyl group.

Accepted Answer

Question 13

Identify thefunctional group.

Accepted Answer

A) ether 
B) aldehyde 
C) ester 
D) alcohol 
A) ether 
B) aldehyde 
C) ester 
D) alcohol

Question 14

Which compound contains only carbons and hydrogens?

Accepted Answer

A) methyl ethanoate 
B) acetylene 
C) 2-butanone 
D) ethyl amine 
A) methyl ethanoate 
B) acetylene 
C) 2-butanone 
D) ethyl amine

Question 15

Which are isomers?

Accepted Answer

A) All are isomers. 
B) (1)and (2); (3)and (4) 
C) (1)and (3); (2)and (4) 
D) (1)and (4); (2)and (3) 
A) All are isomers. 
B) (1)and (2); (3)and (4) 
C) (1)and (3); (2)and (4) 
D) (1)and (4); (2)and (3)

Question 16

The nucleotide sequence,T-A-G,stands for

Accepted Answer

A) threonine-alanine-glutamine. 
B) thymine-adenine-guanine. 
C) tyrosine-asparagine-glutamic acid. 
D) None of these. 
A) threonine-alanine-glutamine. 
B) thymine-adenine-guanine. 
C) tyrosine-asparagine-glutamic acid. 
D) None of these.

Question 17

-Which of these molecules above have a large partial negative charge (δ-)on the carbon atom?

Accepted Answer

A) only (1) 
B) only (3) 
C) (1)and (3) 
D) (2)and (4) 
A) only (1) 
B) only (3) 
C) (1)and (3) 
D) (2)and (4)

Question 18

Based on the structure of its side chains,the amino acid shown below can be classified as

Accepted Answer

A) acidic. 
B) basic. 
C) neutral,non-polar. 
D) neutral,polar. 
A) acidic. 
B) basic. 
C) neutral,non-polar. 
D) neutral,polar.

Question 19

What functional group is commonly found in fats?

Accepted Answer

A) -NH2 
B) -OH 
C) -C-O-C 
D) O
 
-O-C-C- 
A) -NH2 
B) -OH 
C) -C-O-C 
D) O
 
-O-C-C-

Question 20

How many ether isomers have the formula C4H10O?

Accepted Answer

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

Exam 23: Connections to Organic and Biological Chemistry

Which compound is a saturated hydrocarbon?

Which compound will exhibit cis-trans isomerism?

Which of the following pairs have the most similar chemical properties?

What is the IUPAC name for the following compound?

Based on the structure of its side chains,the amino acid shown below can be classified as

Which of the following statements about properties of organic compounds is not correct?

The following structure represents a butyl group.

The C-Br bond in CH3Br is a ________ (nonpolar,polar)covalent bond with a ________ (δ+,δ-)charge on the carbon atom and a ________ (δ+,δ-)charge on the bromine atom.

Which statement below is false concerning nomenclature rules for alkanes?

To which family does this organic compound belong?

Some of the products from reaction of bromine and propane are shown below.(The hydrogen atoms are not shown in the structures. )How many are identical structures?

(CH3)3C- represents a ________ (normal,secondary,tertiary)butyl group.

Identify thefunctional group.

Which compound contains only carbons and hydrogens?

Which are isomers?

The nucleotide sequence,T-A-G,stands for

-Which of these molecules above have a large partial negative charge (δ-)on the carbon atom?

Based on the structure of its side chains,the amino acid shown below can be classified as

What functional group is commonly found in fats?

How many ether isomers have the formula C4H10O?

Chemical Tools: Experimentation and Measurement

Atoms, molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Periodicity and the Electronic Structure of Atoms

Ionic Compounds: Periodic Trends and Bonding

Covalent Bonding and Electron-Dot Structures

Covalent Compounds: Bonding Theories and Molecular Structure

Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids, solids, and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Transition Elements and Coordination Chemistry

Metals and Solid-State Materials

The Main-Group Elements

Filters

The C-Br bond in CH₃Br is a (nonpolar,polar)covalent bond with a (δ+,δ-)charge on the carbon atom and a (δ+,δ-)charge on the bromine atom.

(CH₃)₃C- represents a ________ (normal,secondary,tertiary)butyl group.

How many ether isomers have the formula C₄H₁₀O?