Question 1

For a molecule to possess a dipole moment,which following condition is necessary but not sufficient?

Accepted Answer

A)   Three or more atoms in the molecule
B)   Presence of one or more polar bonds
C)   A non-linear structure
D)   Presence of oxygen or fluorine
E)   Absence of a carbon-carbon double or triple bondF) None of the above
G) A) and E)

Question 2

Which is a 3  °\degree°  alkyl halide?

Accepted Answer

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

Question 3

For the functional group(s) on the following molecule what characteristic IR absorption(s) would be expected (ignoring C-H absorptions) ? -1 B)  A peak around 3300 cm-1 C)  A peak around 1650 cm-1 D)  A peak around 2250 cm-1 E)  None of these" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   A peak around 1700 cm-1
B)   A peak around 3300 cm-1
C)   A peak around 1650 cm-1
D)   A peak around 2250 cm-1
E)   None of theseF) A) and C)
G) All of the above

Question 4

What alkyl groups make up the following ether?

Accepted Answer

A)   isobutyl and propyl
B)   propyl and butyl
C)   ethyl and isopropyl
D)   propyl and sec-butyl
E)   None of theseF) C) and D)
G) A) and B)

Question 5

An example of a tertiary amine is:

Accepted Answer

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

Question 6

For the functional group(s) on the following molecule what characteristic IR absorption(s) would be expected (ignoring C-H absorptions) ? -1 B)  A peak around 3300 cm-1 C)  Only normal alkane absorptions D)  A peak around 2250 cm-1 E)  None of these" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   A peak around 1700 cm-1
B)   A peak around 3300 cm-1
C)   Only normal alkane absorptions
D)   A peak around 2250 cm-1
E)   None of theseF) D) and E)
G) A) and B)

Question 7

Which compound(s) contain(s) tertiary carbon atom(s) ?

Accepted Answer

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

Question 8

What functional group is present in the following compound?

Accepted Answer

A)   alcohol
B)   ketone
C)   aldehyde
D)   ester
E)   etherF) B) and D)
G) C) and D)

Question 9

The solid alkane CH3(CH2) 18CH3 is expected to exhibit the greatest solubility in which of the following solvents?

Accepted Answer

A)   CCl4
B)   CH3OH
C)   H2O
D)   CH3NH2
E)   HOCH2CH2OHF) C) and D)
G) B) and D)

Question 10

What functional group is present in the following compound? o alcohol B)  ether C)  2o alcohol D)  ester E)  3o alcohol" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   1o alcohol
B)   ether
C)   2o alcohol
D)   ester
E)   3o alcoholF) A) and E)
G) A) and D)

Question 11

What functional group(s) is/are present in the following compound? o alcohol B)  alkyne and 1o alcohol C)  2o alcohol and alkene D)  nitrile and 1o alcohol E)  alkene and 2o alcohol" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   alkyne and 2o alcohol
B)   alkyne and 1o alcohol
C)   2o alcohol and alkene
D)   nitrile and 1o alcohol
E)   alkene and 2o alcoholF) A) and E)
G) A) and B)

Question 12

The compound shown below is a substance called Capsaicin,found in varying concentrations in several varieties of hot peppers,and responsible for their respective degrees of "heat".Which functional groups are present in the molecule of capsaicin?

Accepted Answer

A)   Alkene,ketone,amine,alcohol,ester
B)   Alkene,ketone,alcohol,ether
C)   Alkene,amine,phenol,ether
D)   Ether,phenol,alkene,amide
E)   Ester,phenol,alkene,amideF) C) and D)
G) None of the above

Question 13

For the following reaction sequence (it is not necessary to understand the chemistry) what significant change(s) would be expected by IR (ignoring C-H absorptions) ? -1 would disappear and nothing new would appear. B)  A peak around 1710 cm-1 would appear and a new peak around 3300 cm-1 would disappear. C)  A peak around 2150 cm-1 would disappear and a new peak around 3300 cm-1 would appear. D)  No change would be observed. E)  None of these" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   A peak around 3300 cm-1 would disappear and nothing new would appear.
B)   A peak around 1710 cm-1 would appear and a new peak around 3300 cm-1 would disappear.
C)   A peak around 2150 cm-1 would disappear and a new peak around 3300 cm-1 would appear.
D)   No change would be observed.
E)   None of theseF) A) and B)
G) A) and C)

Question 14

How many constitutional isomers are possible with the formula C4H10O?

Accepted Answer

A)   3
B)   4
C)   5
D)   6
E)   7F) A) and D)
G) A) and E)

Question 15

For the functional group(s) on the following molecule,what characteristic IR absorption(s) would be expected (ignoring C-H absorptions) ? -1 B)  A strong broad peak over 3600 to 2500 cm-1 C)  Peaks around 1650 and 3300 cm-1 D)  A peak around 1710 cm-1 E)  None of these" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   Peaks around 1710 and 1650 cm-1
B)   A strong broad peak over 3600 to 2500 cm-1
C)   Peaks around 1650 and 3300 cm-1
D)   A peak around 1710 cm-1
E)   None of theseF) C) and E)
G) C) and D)

Question 16

Which molecule has a zero dipole moment?

Accepted Answer

A)   SO2
B)   CO2
C)   CO
D)   CHCl3
E)   None of theseF) C) and D)
G) None of the above

Question 17

Which compound would you expect to have the highest boiling point?

Accepted Answer

A)   ethane
B)   ethene
C)   ethyne
D)   bromoethane
E)   methaneF) A) and B)
G) B) and D)

Question 18

What functional group is present in the following compound? o alkyl bromide B)  2o amine C)  nitrile D)  1o amine E)  3o amine" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   1o alkyl bromide
B)   2o amine
C)   nitrile
D)   1o amine
E)   3o amineF) A) and D)
G) A) and C)

Question 19

For the following reaction sequence (it is not necessary to understand the chemistry) what significant change(s) would be expected by IR (ignoring C-H absorptions) ? -1 would disappear and nothing new would appear. B)  A peak around 1720 cm-1 would appear and a new peak around 3300 cm-1 would disappear. C)  A peak around 2250 cm-1 would disappear and new peak around 1720 cm-1 would appear. D)  A peak around 2250 cm-1 would disappear and new peak around 3300 cm-1 would appear. E)  No change would be observed." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   A peak around 2250 cm-1 would disappear and nothing new would appear.
B)   A peak around 1720 cm-1 would appear and a new peak around 3300 cm-1 would disappear.
C)   A peak around 2250 cm-1 would disappear and new peak around 1720 cm-1 would appear.
D)   A peak around 2250 cm-1 would disappear and new peak around 3300 cm-1 would appear.
E)   No change would be observed.F) A) and C)
G) C) and D)

Question 20

Which compound is a primary amine with the formula C5H13N? 5H13N?   A)  I B)  II C)  III D)  IV E)  V" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Exam 2: Representative Carbon Compounds: Functional Groups, Intermolecular Forces, and Infrared Ir Spectroscopy

What functional group is present in the following compound?

Correct AnswerverifiedShow Answer

What functional group is present in the following compound?

Correct AnswerverifiedShow Answer

What functional group is present in the following compound?

Correct AnswerverifiedShow Answer

For the following reaction sequence (it is not necessary to understand the chemistry) what significant change(s) would be expected by IR (ignoring C-H absorptions) ?

Correct AnswerverifiedShow Answer

The compound shown below is a substance called Capsaicin,found in varying concentrations in several varieties of hot peppers,and responsible for their respective degrees of "heat".Which functional groups are present in the molecule of capsaicin?

Correct AnswerverifiedShow Answer

For the functional group(s) on the following molecule what characteristic IR absorption(s) would be expected (ignoring C-H absorptions) ?

Correct AnswerverifiedShow Answer

Which compound is a primary amine with the formula C5H13N?

Correct AnswerverifiedShow Answer

Which compound would you expect to have the highest boiling point?

Correct AnswerverifiedShow Answer

The solid alkane CH3(CH2) 18CH3 is expected to exhibit the greatest solubility in which of the following solvents?

Correct AnswerverifiedShow Answer

Which compound(s) contain(s) tertiary carbon atom(s) ?

Correct AnswerverifiedShow Answer

For the following reaction sequence (it is not necessary to understand the chemistry) what significant change(s) would be expected by IR (ignoring C-H absorptions) ?

Correct AnswerverifiedShow Answer

What alkyl groups make up the following ether?

Correct AnswerverifiedShow Answer

For a molecule to possess a dipole moment,which following condition is necessary but not sufficient?

Correct AnswerverifiedShow Answer

Which is a 3 °\degree° alkyl halide?

Correct AnswerverifiedShow Answer

For the functional group(s) on the following molecule what characteristic IR absorption(s) would be expected (ignoring C-H absorptions) ?

Correct AnswerverifiedShow Answer

Which molecule has a zero dipole moment?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

An example of a tertiary amine is:

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For the functional group(s) on the following molecule,what characteristic IR absorption(s) would be expected (ignoring C-H absorptions) ?

Correct AnswerverifiedShow Answer

How many constitutional isomers are possible with the formula C4H10O?

Correct AnswerverifiedShow Answer

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Which compound is a primary amine with the formula C₅H₁₃N?

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The solid alkane CH₃(CH₂) ₁₈CH₃ is expected to exhibit the greatest solubility in which of the following solvents?

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Which is a 3 $\degree$ alkyl halide? $Which is a 3 \degree alkyl halide? A) I B) II C) III D) IV E) V$

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How many constitutional isomers are possible with the formula C₄H₁₀O?

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