Question 1

Which of these is the correct name for CH  3  CH  2  CCH?

Accepted Answer

A)  Pentene 
B)  Pentyne 
C)  Butene 
D)  Butyne 
E)  Butadiene 
A)  Pentene 
B)  Pentyne 
C)  Butene 
D)  Butyne 
E)  Butadiene

Question 2

Which of these is the correct name for the structure below?
​

Accepted Answer

A)  Propanal 
B)  1-propanone 
C)  Formaldehyde 
D)  3-propanal 
E)  Benzaldehyde 
A)  Propanal 
B)  1-propanone 
C)  Formaldehyde 
D)  3-propanal 
E)  Benzaldehyde

Question 3

Which of the following elements is generally present in an amine apart from carbon and hydrogen?

Accepted Answer

A)  Chlorine 
B)  Argon 
C)  Helium 
D)  Boron 
E)  Nitrogen 
A)  Chlorine 
B)  Argon 
C)  Helium 
D)  Boron 
E)  Nitrogen

Question 4

Which of these is the correct name for the structure  below ?
​

Accepted Answer

A)  Diethyl ether 
B)  Butanone 
C)  Ethyl ethlyate 
D)  1,4-dimethyl ethanone 
E)  Diethylethanal 
A)  Diethyl ether 
B)  Butanone 
C)  Ethyl ethlyate 
D)  1,4-dimethyl ethanone 
E)  Diethylethanal

Question 5

Which of the following has the same molecular formula as hexane?

Accepted Answer

A)  3-methylpentane 
B)  2,2-dimethylbutane 
C)  cyclohexane 
D)  a and b 
E)  All of these 
A)  3-methylpentane 
B)  2,2-dimethylbutane 
C)  cyclohexane 
D)  a and b 
E)  All of these

Question 6

If an alkane undergoes a reaction to become an alkene, the newly formed alkene will most likely contain _____  hydrogen atom(s) than the alkane .

Accepted Answer

A)  one more 
B)  two more 
C)  one fewer 
D)  two fewer 
E)  three fewer 
A)  one more 
B)  two more 
C)  one fewer 
D)  two fewer 
E)  three fewer

Question 7

Which of these is the correct name for CH3(CH2)4CH3?

Accepted Answer

A)  Butene 
B)  Octane 
C)  Hexane 
D)  Nonane 
E)  Heptene 
A)  Butene 
B)  Octane 
C)  Hexane 
D)  Nonane 
E)  Heptene

Question 8

Which of these is the correct name for the structure  depicted?
​

Accepted Answer

A)  3-ethyl-2-methylbutane 
B)  3-ethyl-2-methylpentane 
C)  2-ethyl-1,3-dimethylbutane 
D)  1,2,3-trimethylpropane 
E)  4,5-dimethyl-2-hexane 
A)  3-ethyl-2-methylbutane 
B)  3-ethyl-2-methylpentane 
C)  2-ethyl-1,3-dimethylbutane 
D)  1,2,3-trimethylpropane 
E)  4,5-dimethyl-2-hexane

Question 9

Which of these families is incorrectly matched to its general formula?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 10

Which of these is the correct name for the structure  depicted?

Accepted Answer

A)  2-methylbutene 
B)  2-methyl-1-butene 
C)  2-methyl-2-butene 
D)  2,3-dimethyl-1-butene 
E)  2-methyl-3-ethyl-1-butene 
A)  2-methylbutene 
B)  2-methyl-1-butene 
C)  2-methyl-2-butene 
D)  2,3-dimethyl-1-butene 
E)  2-methyl-3-ethyl-1-butene

Question 11

Which of these molecules is not an isomer of hexene?

Accepted Answer

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

Question 12

Which of these elements is the basis for organic chemistry?

Accepted Answer

A)  Hydrogen 
B)  Nitrogen 
C)  Sodium 
D)  Carbon 
E)  Chlorine 
A)  Hydrogen 
B)  Nitrogen 
C)  Sodium 
D)  Carbon 
E)  Chlorine

Question 13

Which of these is not correct?

Accepted Answer

A)  Alkynes always contain a triple bond. 
B)  Alcohols contain at least one oxygen atom. 
C)  Amines contain at least one phosphorus atom. 
D)  Carboxylic acids contain at least two oxygen atoms. 
E)  An aldehyde contains a double bond. 
A)  Alkynes always contain a triple bond. 
B)  Alcohols contain at least one oxygen atom. 
C)  Amines contain at least one phosphorus atom. 
D)  Carboxylic acids contain at least two oxygen atoms. 
E)  An aldehyde contains a double bond.

Question 14

Determine the number of structural isomers of C5H12.

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 15

Which of these scientists is credited with proposing the ring structure of benzene?

Accepted Answer

A)  Wohler 
B)  Lewis 
C)  Kekule 
D)  Dalton 
E)  Bohr 
A)  Wohler 
B)  Lewis 
C)  Kekule 
D)  Dalton 
E)  Bohr

Question 16

Which of the following is true of a hydrocarbon?

Accepted Answer

A)  It consists of carbon and hydrogen atoms. 
B)  It can form a ring structure. 
C)  It is a good fuel for combustion reactions. 
D)  It can contain double or triple bonds. 
E)  All of these 
A)  It consists of carbon and hydrogen atoms. 
B)  It can form a ring structure. 
C)  It is a good fuel for combustion reactions. 
D)  It can contain double or triple bonds. 
E)  All of these

Question 17

Which of these families is incorrectly matched to its general formula?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 18

How many carbon atoms are there in a molecule of hexane?

Accepted Answer

A)  4 
B)  5 
C)  6 
D)  7 
E)  8 
A)  4 
B)  5 
C)  6 
D)  7 
E)  8

Question 19

How many hydrogen atoms would a straight chain or branched alkane that has 25 carbon atoms contain?

Accepted Answer

A)  25 
B)  48 
C)  50 
D)  52 
E)  None of these 
A)  25 
B)  48 
C)  50 
D)  52 
E)  None of these

Question 20

Which of these statements about isomers is incorrect ?

Accepted Answer

A)  Isomers have the same chemical formula. 
B)  Isomers have different structural formulas. 
C)  Isomers have essentially the same properties. 
D)  Alkenes and alkynes exhibit isomerism based on the position of the double or triple bonds. 
E)  In alkanes, the greater the number of carbon atoms the greater the number of isomers. 
A)  Isomers have the same chemical formula. 
B)  Isomers have different structural formulas. 
C)  Isomers have essentially the same properties. 
D)  Alkenes and alkynes exhibit isomerism based on the position of the double or triple bonds. 
E)  In alkanes, the greater the number of carbon atoms the greater the number of isomers.

Which of these is the correct name for CH ₃ CH ₂ CCH?

Which of these is the correct name for the structure below?

Which of the following elements is generally present in an amine apart from carbon and hydrogen?

Which of these is the correct name for the structure below ?

Which of the following has the same molecular formula as hexane?

If an alkane undergoes a reaction to become an alkene, the newly formed alkene will most likely contain _____ hydrogen atom(s) than the alkane .

Which of these is the correct name for CH₃(CH₂)₄CH₃?

Which of these is the correct name for the structure depicted?

Which of these families is incorrectly matched to its general formula?

Which of these is the correct name for the structure depicted?

Which of these molecules is not an isomer of hexene?

Which of these elements is the basis for organic chemistry?

Which of these is not correct?

Determine the number of structural isomers of C₅H₁₂.

Which of these scientists is credited with proposing the ring structure of benzene?

Which of the following is true of a hydrocarbon?

Which of these families is incorrectly matched to its general formula?

How many carbon atoms are there in a molecule of hexane?

How many hydrogen atoms would a straight chain or branched alkane that has 25 carbon atoms contain?

Which of these statements about isomers is incorrect ?

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Exam 6: Organic Chemistry

Which of these is the correct name for CH 3 CH 2 CCH?

Which of these is the correct name for the structure below? ​

Which of the following elements is generally present in an amine apart from carbon and hydrogen?

Which of these is the correct name for the structure below ? ​

Which of the following has the same molecular formula as hexane?

If an alkane undergoes a reaction to become an alkene, the newly formed alkene will most likely contain _____ hydrogen atom(s) than the alkane .

Which of these is the correct name for CH3(CH2)4CH3?

Which of these is the correct name for the structure depicted? ​

Which of these families is incorrectly matched to its general formula?

Which of these is the correct name for the structure depicted?

Which of these molecules is not an isomer of hexene?

Which of these elements is the basis for organic chemistry?

Which of these is not correct?

Determine the number of structural isomers of C5H12.

Which of these scientists is credited with proposing the ring structure of benzene?

Which of the following is true of a hydrocarbon?

Which of these families is incorrectly matched to its general formula?

How many carbon atoms are there in a molecule of hexane?

How many hydrogen atoms would a straight chain or branched alkane that has 25 carbon atoms contain?

Which of these statements about isomers is incorrect ?

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The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

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Which of these is the correct name for CH ₃ CH ₂ CCH?

Which of these is the correct name for the structure below?

Which of these is the correct name for the structure below ?

Which of these is the correct name for CH₃(CH₂)₄CH₃?

Which of these is the correct name for the structure depicted?

Determine the number of structural isomers of C₅H₁₂.