Question 1

Linalool is a major compound present in the essential oil of coriander.How many degrees of unsaturation are present in this molecule?

Accepted Answer

A)  2
B)  3
C)  4
D)  5
E)  6F) C) and D)
G) A) and D)

Question 2

Give the mechanism for the following reaction.

Accepted Answer

The answer of Give the mechanism for the following reaction....

Question 3

β-Phellandrene is a hydrocarbon component of eucalyptus oil whose molecular formula is C10H16.A molecule of β-phellandrene contains 2 π-bonds.How many rings are in β-phellandrene?

Accepted Answer

A)  0
B)  1
C)  2
D)  3
E)  4F) B) and C)
G) None of the above

Question 4

Which of the following correctly describes the reaction whose reaction coordinate diagram is shown?

Accepted Answer

A)  endergonic with no transition state
B)  exergonic with no transition state
C)  endergonic with a transition state
D)  exergonic with a transition state
E)  endergonic with an intermediateF) A) and B)
G) None of the above

Question 5

Give the general formula for a cyclic alkene.

Accepted Answer

A)  CnH2n-4
B)  CnH2n-2
C)  CnH2n
D)  CnH2n+2E) A) and B)
F) A) and C)

Question 6

What is the free energy of activation of a one-step reaction? How is it qualitatively related to the rate constant of the reaction?

Accepted Answer

The free energy of activation of a one-s...

Question 7

What is the molecular formula of the hydrocarbon that contains 8 carbon atoms,one ring,and two π bonds?

Accepted Answer

The answer of What is the molecular formula of the...

Question 8

The ΔG° for the conversion of "axial" isopropylcyclohexane to "equatorial" isopropylcyclohexane at 298K is -2.1 kcal/mol.Calculate the percentage of isopropylcyclohexane molecules that have the isopropyl substituent in the axial position at this temperature.
[R = 1.987 × 10-3 kcal mol-1K-1]

Accepted Answer

ΔG° = -RTlnK -2.1 kcal/mol = -...

Question 9

Draw all the possible constitutional isomers of C4H8.

Accepted Answer

Question 10

Provide the proper IUPAC name for the alkene shown below.

Accepted Answer

6-bromo-1-...

Question 11

Draw the structure of (Z)-4-ethyl-3-methylheptene.

Accepted Answer

The answer of Draw the structure of (Z)-4-ethyl-3-methylheptene....

Question 12

How many degrees of unsaturation are present in a molecule with formula C10H16?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) A) and E)
G) B) and E)

Question 13

Give the possibilities in structure for a compound with a formula of C6H10.

Accepted Answer

A)  no rings,no double bonds,no triple bonds
B)  one double bond,or one ring
C)  two rings,two double bonds,one double bond + one ring,or one triple bond
D)  three rings,three double bonds,two double bonds + one ring,one ring + two double bonds,one triple bond + one ring,or one double bond + one ring
E)  benzeneF) A) and B)
G) B) and D)

Question 14

Provide an acceptable name of the compound below.

Accepted Answer

5-isobutyl...

Question 15

An increase in which of the following results in a decrease in the rate of the chemical reaction?

Accepted Answer

A)  temperature
B)  concentration
C)  collision frequency
D)  energy of activation
E)  fraction of collisions with proper orientationF) A) and D)
G) B) and D)

Question 16

Provide the proper IUPAC name of the following compound

Accepted Answer

(Z)-3-meth...

Question 17

Name the structure.

Accepted Answer

A)  (Z) -3-ethyl-2-hydroxymethyl-2-penten-4-ynal
B)  (
E)  -3-ethyl-2-hydroxymethyl-2-penten-4-ynal
C)  (Z) -3-ethyl-5-hydroxymethyl-3-penten-1-ynal
D)  (
E)  -3-ethyl-5-hydroxymethyl-3-penten-1-ynal
E)  3-ethyl-5-hydroxymethyl-3-penten-1-ynalF) A) and E)
G) C) and E)

Question 18

Muscalure,the sex attractant of the common housefly,is an acyclic alkene that contains 23 carbons.How many hydrogen atoms are in a molecule of muscalure?

Accepted Answer

The answer of Muscalure,the sex attractant of the common housefly,is...

Question 19

Give the degree of unsaturation for benzene.

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) B) and D)
G) A) and D)

Question 20

Provide the systematic name of the compound shown below.Make sure to include the E or Z designator if necessary.

Accepted Answer

(E)-4-ethy...

Exam 5: Alkenes: Structure,nomenclature,and an Introduction to Reactivity - Thermodynamics and Kinetics

Which of the following correctly describes the reaction whose reaction coordinate diagram is shown?

Correct AnswerverifiedShow Answer

The ΔG° for the conversion of "axial" isopropylcyclohexane to "equatorial" isopropylcyclohexane at 298K is -2.1 kcal/mol.Calculate the percentage of isopropylcyclohexane molecules that have the isopropyl substituent in the axial position at this temperature. [R = 1.987 × 10-3 kcal mol-1K-1]

Correct AnswerverifiedΔG° = -RTlnK -2.1 kcal/mol = -...View AnswerShow Answer

β-Phellandrene is a hydrocarbon component of eucalyptus oil whose molecular formula is C10H16.A molecule of β-phellandrene contains 2 π-bonds.How many rings are in β-phellandrene?

Correct AnswerverifiedShow Answer

How many degrees of unsaturation are present in a molecule with formula C10H16?

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Provide the proper IUPAC name for the alkene shown below.

Correct Answerverified6-bromo-1-...View AnswerShow Answer

Name the structure.

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Provide the proper IUPAC name of the following compound

Correct Answerverified(Z)-3-meth...View AnswerShow Answer

Provide the systematic name of the compound shown below.Make sure to include the E or Z designator if necessary.

Correct Answerverified(E)-4-ethy...View AnswerShow Answer

Muscalure,the sex attractant of the common housefly,is an acyclic alkene that contains 23 carbons.How many hydrogen atoms are in a molecule of muscalure?

Correct AnswerverifiedShow Answer

Provide an acceptable name of the compound below.

Correct Answerverified5-isobutyl...View AnswerShow Answer

What is the free energy of activation of a one-step reaction? How is it qualitatively related to the rate constant of the reaction?

Correct AnswerverifiedThe free energy of activation of a one-s...View AnswerShow Answer

Give the mechanism for the following reaction.

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What is the molecular formula of the hydrocarbon that contains 8 carbon atoms,one ring,and two π bonds?

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Give the general formula for a cyclic alkene.

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Draw the structure of (Z)-4-ethyl-3-methylheptene.

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An increase in which of the following results in a decrease in the rate of the chemical reaction?

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Give the degree of unsaturation for benzene.

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Linalool is a major compound present in the essential oil of coriander.How many degrees of unsaturation are present in this molecule?

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Give the possibilities in structure for a compound with a formula of C6H10.

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Draw all the possible constitutional isomers of C4H8.

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Correct Answer
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The ΔG° for the conversion of "axial" isopropylcyclohexane to "equatorial" isopropylcyclohexane at 298K is -2.1 kcal/mol.Calculate the percentage of isopropylcyclohexane molecules that have the isopropyl substituent in the axial position at this temperature. [R = 1.987 × 10^-3 kcal mol^-1K^-1]

Correct Answer
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ΔG° = -RTlnK -2.1 kcal/mol = -...
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β-Phellandrene is a hydrocarbon component of eucalyptus oil whose molecular formula is C₁₀H₁₆.A molecule of β-phellandrene contains 2 π-bonds.How many rings are in β-phellandrene?

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How many degrees of unsaturation are present in a molecule with formula C₁₀H₁₆?

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6-bromo-1-...
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(Z)-3-meth...
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(E)-4-ethy...
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5-isobutyl...
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The free energy of activation of a one-s...
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Give the possibilities in structure for a compound with a formula of C₆H₁₀.

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Draw all the possible constitutional isomers of C₄H₈.

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