Question 1

Amines are compounds that are structurally derived by replacing one or more hydrogen atoms of ammonia with _____ groups.

Accepted Answer

A) ​aldehyde 
B) ​carbonyl 
C) ​hydroxyl 
D) ​hydrocarbon 
E) ​carboxyl 
A) ​aldehyde 
B) ​carbonyl 
C) ​hydroxyl 
D) ​hydrocarbon 
E) ​carboxyl

Question 2

Carbon,a Group 4A element of the periodic table,has _____ valence electrons.

Accepted Answer

A) ​five 
B) ​one 
C) ​three 
D) ​two 
E) ​four 
A) ​five 
B) ​one 
C) ​three 
D) ​two 
E) ​four

Question 3

What is the IUPAC name for the compound having the following condensed structural formula?

Accepted Answer

A) 3,4-dimethylpentyl methyl ether 
B) 3,4-dimethyl-2-hexanol 
C) 3,4-dimethyl-5-hexanone 
D) 4-ethyl-3-methyl-2-pentanone 
E) 3,4-dimethyl-2-hexanone 
A) 3,4-dimethylpentyl methyl ether 
B) 3,4-dimethyl-2-hexanol 
C) 3,4-dimethyl-5-hexanone 
D) 4-ethyl-3-methyl-2-pentanone 
E) 3,4-dimethyl-2-hexanone

Question 4

What is the composition of crude oil?

Accepted Answer

A) mostly unsaturated hydrocarbons having 5-12 carbons per molecule 
B) mostly hydrocarbons,but the precise composition varies widely depending on location 
C) mostly aromatic hydrocarbons 
D) mostly saturated hydrocarbons having 5-12 carbons per molecule 
E) mostly saturated hydrocarbons having 12-20 carbons per molecule 
A) mostly unsaturated hydrocarbons having 5-12 carbons per molecule 
B) mostly hydrocarbons,but the precise composition varies widely depending on location 
C) mostly aromatic hydrocarbons 
D) mostly saturated hydrocarbons having 5-12 carbons per molecule 
E) mostly saturated hydrocarbons having 12-20 carbons per molecule

Question 5

What is the IUPAC name for the molecule given below?

Accepted Answer

A) trans-3-hexene 
B) cis-3-hexene 
C) cis-3-pentene 
D) cis-3-pentyne 
E) trans-3-hexyne 
A) trans-3-hexene 
B) cis-3-hexene 
C) cis-3-pentene 
D) cis-3-pentyne 
E) trans-3-hexyne

Question 6

What is the correct condensed structural formula for 2,4-dimethyl-3-hexanone?

Accepted Answer

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

Question 7

Based on the three condensed structural formulas below,which of the following statements is true?
1
2
3

Accepted Answer

A) Formulas 2 and 3 describe enantiomers. 
B) Formulas 1 and 3 describe different compounds. 
C) Formulas 1 and 2 describe structural isomers. 
D) Formulas 1,2,and 3 all describe the same compound. 
E) Formulas 2 and 3 describe geometric isomers. 
A) Formulas 2 and 3 describe enantiomers. 
B) Formulas 1 and 3 describe different compounds. 
C) Formulas 1 and 2 describe structural isomers. 
D) Formulas 1,2,and 3 all describe the same compound. 
E) Formulas 2 and 3 describe geometric isomers.

Question 8

How are polycyclic aromatic hydrocarbons formed?

Accepted Answer

A) ​By the reaction of benzene with ammonia 
B) ​By the reaction of benzene with carboxylic acid 
C) ​By the fusion of two or more benzene rings 
D) ​By delocalization of the benzene ring 
E) ​By the fission of benzene with alkynes 
A) ​By the reaction of benzene with ammonia 
B) ​By the reaction of benzene with carboxylic acid 
C) ​By the fusion of two or more benzene rings 
D) ​By delocalization of the benzene ring 
E) ​By the fission of benzene with alkynes

Question 9

Which compound is a ketone?

Accepted Answer

A) (CH3)2C(OH)CH3 
B) (CH3)2CHCOOH 
C) (CH3)2CHOCH3 
D) (CH3)2CHCHO 
E) (CH3)2CHCOCH3 
A) (CH3)2C(OH)CH3 
B) (CH3)2CHCOOH 
C) (CH3)2CHOCH3 
D) (CH3)2CHCHO 
E) (CH3)2CHCOCH3

Question 10

Which of the following molecules has the longest carbon-carbon bond distance?

Accepted Answer

A) C6H6 
B) H2CCO 
C) H2CCH2 
D) H3CCH3 
E) HCCH 
A) C6H6 
B) H2CCO 
C) H2CCH2 
D) H3CCH3 
E) HCCH

Question 11

CH3C ≡ CCH2CH2Cl is named

Accepted Answer

A) 1-chloro-3-pentyne. 
B) 5-chloro-2-pentyne. 
C) 5-chloro-2-pentene. 
D) 1-acetylenyl-3-chloropropane. 
E) 1-chloro-3-pentene. 
A) 1-chloro-3-pentyne. 
B) 5-chloro-2-pentyne. 
C) 5-chloro-2-pentene. 
D) 1-acetylenyl-3-chloropropane. 
E) 1-chloro-3-pentene.

Question 12

The functional group of an alkyne consists of

Accepted Answer

A) 3 σ bonds. 
B) 2 σ bonds and 1 π bond. 
C) 3 π bonds. 
D) 1 σ bond and 2 π bonds. 
E) 1 σ bond and 1 π bond. 
A) 3 σ bonds. 
B) 2 σ bonds and 1 π bond. 
C) 3 π bonds. 
D) 1 σ bond and 2 π bonds. 
E) 1 σ bond and 1 π bond.

Question 13

Which of the following structural formulas is not an isomer of cis-2-pentene?

Accepted Answer

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

Question 14

Which of the following statements is true concerning the two compounds 2,3-dimethylpentane and 2,4-dimethylpentane?

Accepted Answer

A) Because the two compounds are structural isomers,they should have the same molecular formula. 
B) Because the two compounds are structural isomers,they should have identical chemical properties. 
C) Because the two compounds are structural isomers,they should have identical physical properties. 
D) Because the two compounds are enantiomers,they should rotate polarized light in opposite directions. 
E) Because the two compounds are geometric isomers,one should be cis and the other should be trans. 
A) Because the two compounds are structural isomers,they should have the same molecular formula. 
B) Because the two compounds are structural isomers,they should have identical chemical properties. 
C) Because the two compounds are structural isomers,they should have identical physical properties. 
D) Because the two compounds are enantiomers,they should rotate polarized light in opposite directions. 
E) Because the two compounds are geometric isomers,one should be cis and the other should be trans.

Question 15

Which of the following names may represent either a cis or a trans isomer?

Accepted Answer

A) 1-butene 
B) 1,2-dibromoethene 
C) 1,1,2-tribromoethene 
D) 1,1-dibromoethene 
E) 1-bromo-1-chloroethene 
A) 1-butene 
B) 1,2-dibromoethene 
C) 1,1,2-tribromoethene 
D) 1,1-dibromoethene 
E) 1-bromo-1-chloroethene

Question 16

What is the functional group classification of a compound with the general formula given below?

Accepted Answer

A) primary amine 
B) secondary amine 
C) tertiary amine 
D) amide 
E) ​ester 
A) primary amine 
B) secondary amine 
C) tertiary amine 
D) amide 
E) ​ester

Question 17

What is the correct structural formula for o-dichlorobenzene?

Accepted Answer

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

Question 18

What is the molecular formula of a straight-chain alkyne with 7 carbon atoms?

Accepted Answer

A) C7H7 
B) C7H18 
C) C7H16 
D) C7H14 
E) C7H12 
A) C7H7 
B) C7H18 
C) C7H16 
D) C7H14 
E) C7H12

Question 19

How many hydrogen atoms are needed to complete the following hydrocarbon structure?

Accepted Answer

A) 4 
B) 6 
C) 2 
D) 8 
E) 3 
A) 4 
B) 6 
C) 2 
D) 8 
E) 3

Question 20

How many structural isomers possessing the alcohol functional group have the molecular formula C3 H8 O?

Accepted Answer

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

Exam 23: Organic Chemistry

Amines are compounds that are structurally derived by replacing one or more hydrogen atoms of ammonia with _____ groups.

Carbon,a Group 4A element of the periodic table,has _____ valence electrons.

What is the IUPAC name for the compound having the following condensed structural formula?

What is the composition of crude oil?

What is the IUPAC name for the molecule given below?

What is the correct condensed structural formula for 2,4-dimethyl-3-hexanone?

Based on the three condensed structural formulas below,which of the following statements is true? 1 2 3

How are polycyclic aromatic hydrocarbons formed?

Which compound is a ketone?

Which of the following molecules has the longest carbon-carbon bond distance?

CH3C ≡ CCH2CH2Cl is named

The functional group of an alkyne consists of

Which of the following structural formulas is not an isomer of cis-2-pentene?

Which of the following statements is true concerning the two compounds 2,3-dimethylpentane and 2,4-dimethylpentane?

Which of the following names may represent either a cis or a trans isomer?

What is the functional group classification of a compound with the general formula given below?

What is the correct structural formula for o-dichlorobenzene?

What is the molecular formula of a straight-chain alkyne with 7 carbon atoms?

How many hydrogen atoms are needed to complete the following hydrocarbon structure?

How many structural isomers possessing the alcohol functional group have the molecular formula C3 H8 O?

Chemistry and Measurement

Atoms, molecules, and Ions

Calculations With Chemical Formulas and Equations

Chemical Reactions

The Gaseous State

Thermochemistry

Quantum Theory of the Atom

Electron Configurations and Periodicity

Ionic and Covalent Bonding

Molecular Geometry and Chemical Bonding Theory

States of Matter; Liquids and Solids

Solutions

Rates of Reaction

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Thermodynamics and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry of the Main-Group Metals

The Transition Elements and Coordination Compounds

Polymer Materials: Synthetic and Biological

Filters

CH₃C ≡ CCH₂CH₂Cl is named

How many structural isomers possessing the alcohol functional group have the molecular formula C₃ H₈ O?