Question 1

The number of unique open-chain structures corresponding to the molecular formula C3H5Cl is:

Accepted Answer

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

Question 2

A non-zero dipole moment is exhibited by:

Accepted Answer

A)  SO2
B)  CO2
C)  CCl4
D)  BF3
E)   2 
B)  CO2 
C)  CCl4 
D)  BF3 
E)    " class="answers-bank-image d-inline" rel="preload" >F) A) and B)
G) A) and C)

Question 3

Explain why the compound shown is considered to be capable of being a soap (dissolving oily substances off of surfaces using water).

Accepted Answer

The compound contains a long hydrophobic...

Question 4

Draw all of the isomers of C5H9N that are nitriles.

Accepted Answer

Question 5

Which alkane is predicted to have the highest melting point of those shown?

Accepted Answer

A)  CH3CH2CH2CH3
B)   3CH2CH2CH3 
B)     
C)  CH3CH2CH2CH2CH3 
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
C)  CH3CH2CH2CH2CH3
D)   3CH2CH2CH3 
B)     
C)  CH3CH2CH2CH2CH3 
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
E)   3CH2CH2CH3 
B)     
C)  CH3CH2CH2CH2CH3 
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) A) and D)
G) B) and E)

Question 6

Which molecule would have a dipole moment greater than zero?

Accepted Answer

A)  BeCl2
B)  BCl3
C)  CO2
D)  H2O
E)  CCl4F) C) and D)
G) None of the above

Question 7

What functional group(s) is/are present in the following compound? o alcohol and 2o alkyl chloride B) ether and 2o alcohol C) 1o alkyl chloride and 1o alcohol D) 1o alkyl chloride and 2o alcohol E) None of these choices." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  1o alcohol and 2o alkyl chloride
B)  ether and 2o alcohol
C)  1o alkyl chloride and 1o alcohol
D)  1o alkyl chloride and 2o alcohol
E)  None of these choices.F) A) and B)
G) All of the above

Question 8

Even though methanol (CH3OH)and methylamine (CH3NH2) have similar molecular weights,methanol has a much higher boiling point of 65 oC as opposed to methylamine's boiling point of -6 oC.Briefly explain why.

Accepted Answer

Both compounds have the same strong inte...

Question 9

Which of the following compounds contains polar covalent bonds?

Accepted Answer

A)  S8
B)  LiF
C)  F2
D)  CH3F
E)  None of these choices.F) C) and E)
G) All of the above

Question 10

Which compound would have the lowest boiling point?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  VF) D) and E)
G) C) and D)

Question 11

Even though methyl amine (CH3NH2) has a higher molecular weight than water (H2O),its boiling point is much lower than water's boiling point since water has hydrogen bonding attractive forces.

Accepted Answer

A) True 
 B)False

Question 12

Which of these would you expect to have the lowest boiling point?

Accepted Answer

A)  CH3CH2CH2OH
B)   3CH2CH2OH 
B)     
C)  CH3OCH2CH3 
D)  CH3CH2CH2CH2OH 
E)  CH3CH2OCH2CH3" class="answers-bank-image d-inline" rel="preload" >
C)  CH3OCH2CH3
D)  CH3CH2CH2CH2OH
E)  CH3CH2OCH2CH3F) C) and E)
G) D) and E)

Question 13

n-Pentane has a higher boiling point than isopentane due to an increased surface-to-surface interaction of dispersion forces.

Accepted Answer

A) True 
 B)False

Question 14

What alkyl groups make up the following ether?

Accepted Answer

A)  Isobutyl and methyl
B)  Methyl and butyl
C)  Ethyl and isopropyl
D)  Methyl and sec-butyl
E)  None of these choices.F) A) and E)
G) D) and E)

Question 15

Unsaturated hydrocarbons may be distinguished from saturated hydrocarbons by the presence of one or more ___.

Accepted Answer

pi bonds

Question 16

The compound NaOH is barely soluble in ethanol.The addition of which of the following solvents to ethanol would greatly increase the solubility of NaOH?

Accepted Answer

A)  H2O
B)  Et2O
C)  CH2Cl2
D)  Benzene
E)  All of these choices.F) B) and E)
G) C) and E)

Question 17

In addition to a cycloalkane skeleton,testosterone also contains the following functional groups:

Accepted Answer

A)  Alkene,ester,tertiary alcohol
B)  Alkene,ether,secondary alcohol
C)  Alkene,ketone,secondary alcohol
D)  Alkyne,ketone,secondary alcohol
E)  Alkene,ketone,tertiary alcoholF) A) and E)
G) B) and D)

Question 18

Sodium chloride,which is quite soluble in water,is not very soluble in hexane.Why?

Accepted Answer

Sodium chloride,which is an ionic substance,is soluble in a polar solvent such as water,but not in a non-polar solvent such as hexane.

Question 19

Which compound is a ketone?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) C) and D)
G) A) and E) B

Question 20

A tertiary carbon atom is present in which of these compounds?

Accepted Answer

A)  I
B)  II,IV
C)  III,V
D)  IV
E)  All of these choices.F) B) and C)
G) A) and B)

Exam 2: Families of Carbon

The number of unique open-chain structures corresponding to the molecular formula C3H5Cl is:

Correct AnswerverifiedShow Answer

A non-zero dipole moment is exhibited by:

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Explain why the compound shown is considered to be capable of being a soap (dissolving oily substances off of surfaces using water).

Correct AnswerverifiedThe compound contains a long hydrophobic...View AnswerShow Answer

Draw all of the isomers of C5H9N that are nitriles.

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Which alkane is predicted to have the highest melting point of those shown?

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Which molecule would have a dipole moment greater than zero?

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What functional group(s) is/are present in the following compound?

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Even though methanol (CH3OH)and methylamine (CH3NH2) have similar molecular weights,methanol has a much higher boiling point of 65 oC as opposed to methylamine's boiling point of -6 oC.Briefly explain why.

Correct AnswerverifiedBoth compounds have the same strong inte...View AnswerShow Answer

Which of the following compounds contains polar covalent bonds?

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Which compound would have the lowest boiling point?

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Even though methyl amine (CH3NH2) has a higher molecular weight than water (H2O),its boiling point is much lower than water's boiling point since water has hydrogen bonding attractive forces.

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Which of these would you expect to have the lowest boiling point?

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n-Pentane has a higher boiling point than isopentane due to an increased surface-to-surface interaction of dispersion forces.

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What alkyl groups make up the following ether?

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Unsaturated hydrocarbons may be distinguished from saturated hydrocarbons by the presence of one or more ___.

Correct Answerverifiedpi bonds

The compound NaOH is barely soluble in ethanol.The addition of which of the following solvents to ethanol would greatly increase the solubility of NaOH?

Correct AnswerverifiedShow Answer

In addition to a cycloalkane skeleton,testosterone also contains the following functional groups:

Correct AnswerverifiedShow Answer

Sodium chloride,which is quite soluble in water,is not very soluble in hexane.Why?

Correct AnswerverifiedSodium chloride,which is an ionic substance,is soluble in a polar solvent such as water,but not in a non-polar solvent such as hexane.

Which compound is a ketone?

Correct AnswerverifiedB

A tertiary carbon atom is present in which of these compounds?

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The number of unique open-chain structures corresponding to the molecular formula C₃H₅Cl is:

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The compound contains a long hydrophobic...
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Draw all of the isomers of C₅H₉N that are nitriles.

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Even though methanol (CH₃OH)and methylamine (CH₃NH₂)have similar molecular weights,methanol has a much higher boiling point of 65 ^oC as opposed to methylamine's boiling point of -6 ^oC.Briefly explain why.

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Both compounds have the same strong inte...
View Answer

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Even though methyl amine (CH₃NH₂)has a higher molecular weight than water (H₂O),its boiling point is much lower than water's boiling point since water has hydrogen bonding attractive forces.

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pi bonds

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Sodium chloride,which is an ionic substance,is soluble in a polar solvent such as water,but not in a non-polar solvent such as hexane.

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B

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