Question 1

Which of the following combinations of peaks appears in the 1H NMR spectrum of diethyl ether, CH3CH2OCH2CH3?

Accepted Answer

A)   a triplet and a doublet
B)   a quartet and a sextet
C)   two singlets
D)   a triplet and a quartetE) A) and B)
F) C) and D)

Question 2

Predict the splitting of each of the numbered hydrogen atoms in the structure below in a S1U1P11S1S1P0H NMR spectrum. Identify as singlet, doublet, triplet, quartet, quintet, sextet, septet, .... Place the correct splitting in the blank to the left of the number. 
-______ 1

Accepted Answer

The answer of Predict the splitting of each of the...

Question 3

Identify the compound (C8H10) that gives the following 1H NMR spectrum.

Accepted Answer

o-xylene (1,2-dimethylbenzene)

Question 4

Identify the compound (C8H10) that gives the following 1H NMR spectrum.

Accepted Answer

p-xylene (1,4-dimethylbenzene)

Question 5

Which C6H12O2 compound gives the following 1H NMR spectrum? 6H12O2 compound gives the following 1H NMR spectrum?   A)  1 B)  2 C)  3 D)  4" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Question 6

Which of the following compounds gives a 1H NMR spectrum consisting of only two triplets and a singlet?

Accepted Answer

A)   CH3CH(OCH3) 2
B)   CH3OCH2CH2CH2CH2OCH3
C)   CH3OCH2CH2OCH3
D)   CH3OCH2CH(OH) CH3E) A) and B)
F) A) and C)

Question 7

Which of the following is not true regarding 1H NMR spectroscopy?

Accepted Answer

A)   "shielding" leads to peaks at lower values of δ
B)   a "downfield" peak appears at a higher value of δ
C)   δ for a particular proton depends on the magnetic field strength of the instrument used.
D)   on a 300 MHz instrument, a proton that adsorbs irradiation at a frequency 1200 Hz higher than the adsorption of TMS appears at δ 4 ppm.E) All of the above
F) None of the above

Question 8

Which of the protons in the following molecule appear furthest downfield in the 1H NMR spectrum?  \quad\quad\quad\quad\quad\quad O
 \quad\quad\quad\quad\quad\quad ||
 CH3−CH2−C−O−CH2−CH3\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{C}-\mathrm{O}-\mathrm{CH}_{2}-\mathrm{CH}_{3}CH3​−CH2​−C−O−CH2​−CH3​ 
 \quad i  \quad\quad\quad ii  \quad\quad\quad\quad\quad\quad iii \quad\quad  iv

Accepted Answer

A)   i
B)   ii
C)   iii
D)   iv E) A) and C)
F) None of the above

Question 9

For each of the compounds below tell how many signals you would expect the molecule to have in its normal, broadband hydrogen-decoupled S1U1P113S1S1P0C NMR spectra. Enter the numerical value in the blank provided to the left of the structure.
-_______

Accepted Answer

The answer of For each of the compounds below tell...

Question 10

What is the hydrogen deficiency index for a compound with a molecular formula of C6H6Br2?

Accepted Answer

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

Question 11

Which of the following compounds gives a 1H NMR spectrum consisting of only a singlet, triplet and quintet?

Accepted Answer

A)   CH3OCH2CH2CH2CH2OH
B)   CH3OCH2CH2OCH2CH3
C)   CH3OCH2CH2CH2OCH3
D)   CH3OCH2CH(CH3) OCH3E) A) and C)
F) B) and C)

Question 12

Which C6H12O2 compound gives the following 1H NMR spectrum? 6H12O2 compound gives the following 1H NMR spectrum?   A)  1 B)  2 C)  3 D)  4" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Question 13

Which C9H10O compound gives the following 1H NMR spectrum? 9H10O compound gives the following 1H NMR spectrum?   A)  1 B)  2 C)  3 D)  4" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Question 14

All of the following compound produce only singlets in a 1H NMR spectrum.   $\quad$$\quad$$\quad$$\quad$$\mathrm{CH}_{3}$
$\quad$$\quad$$\quad$$\quad$$\quad$|
$\mathrm{CH}_{3} \mathrm{C} \equiv \mathrm{CCCH}_{3}$
$\quad$$\quad$$\quad$$\quad$$\quad$|
$\quad$$\quad$$\quad$$\quad$$\mathrm{CH}_{3}$

Accepted Answer

A) True 
 B)False

Question 15

Predict the splitting of each of the numbered hydrogen atoms in the structure below in a S1U1P11S1S1P0H NMR spectrum. Identify as singlet, doublet, triplet, quartet, quintet, sextet, septet, .... Place the correct splitting in the blank to the left of the number. 
-______ 1

Accepted Answer

The answer of Predict the splitting of each of the...

Question 16

What is the hydrogen deficiency index for a compound with a molecular formula of C12H16O?

Accepted Answer

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

Question 17

What is the hydrogen deficiency index for a compound with a molecular formula of C6H11N?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) All of the above
F) A) and D)

Question 18

For each of the compounds below tell how many signals you would expect the molecule to have in its normal, broadband hydrogen-decoupled S1U1P113S1S1P0C NMR spectra. Enter the numerical value in the blank provided to the left of the structure.
-_______

Accepted Answer

The answer of For each of the compounds below tell...

Question 19

Which of the following combinations of peaks appears in the 1H NMR spectrum of 1,2-dimethyoxyethane, CH3OCH2CH2OCH3?

Accepted Answer

A)   two singlets
B)   a singlet and a triplet
C)   a singlet and two triplets
D)   a doublet and a tripletE) All of the above
F) A) and B)

Question 20

Identify the compound (C3H7Cl) that gives the following 1H NMR spectrum.

Accepted Answer

Exam 13: Nuclear Magnetic Resonance Spectroscopy

Which of the following combinations of peaks appears in the ¹H NMR spectrum of diethyl ether, CH₃CH₂OCH₂CH₃?

Correct Answer
verified

Predict the splitting of each of the numbered hydrogen atoms in the structure below in a ¹H NMR spectrum. Identify as singlet, doublet, triplet, quartet, quintet, sextet, septet, .... Place the correct splitting in the blank to the left of the number. -______ 1

Correct Answer
verified

Identify the compound (C₈H₁₀) that gives the following ¹H NMR spectrum.

Correct Answer
verified
o-xylene (1,2-dimethylbenzene)

Identify the compound (C₈H₁₀) that gives the following ¹H NMR spectrum.

Correct Answer
verified
p-xylene (1,4-dimethylbenzene)

Which C₆H₁₂O₂ compound gives the following ¹H NMR spectrum?

Correct Answer
verified
C

Which of the following compounds gives a ¹H NMR spectrum consisting of only two triplets and a singlet?

Correct Answer
verified

Which of the following is not true regarding ¹H NMR spectroscopy?

Correct Answer
verified

Correct Answer
verified

For each of the compounds below tell how many signals you would expect the molecule to have in its normal, broadband hydrogen-decoupled ¹³C NMR spectra. Enter the numerical value in the blank provided to the left of the structure. -_______

Correct Answer
verified

What is the hydrogen deficiency index for a compound with a molecular formula of C₆H₆Br₂?

Correct Answer
verified

Which of the following compounds gives a ¹H NMR spectrum consisting of only a singlet, triplet and quintet?

Correct Answer
verified

Which C₆H₁₂O₂ compound gives the following ¹H NMR spectrum?

Correct Answer
verified

Which C₉H₁₀O compound gives the following ¹H NMR spectrum?

Correct Answer
verified

Correct Answer
verified

Predict the splitting of each of the numbered hydrogen atoms in the structure below in a ¹H NMR spectrum. Identify as singlet, doublet, triplet, quartet, quintet, sextet, septet, .... Place the correct splitting in the blank to the left of the number. -______ 1

Correct Answer
verified

What is the hydrogen deficiency index for a compound with a molecular formula of C₁₂H₁₆O?

Correct Answer
verified

What is the hydrogen deficiency index for a compound with a molecular formula of C₆H₁₁N?

Correct Answer
verified

For each of the compounds below tell how many signals you would expect the molecule to have in its normal, broadband hydrogen-decoupled ¹³C NMR spectra. Enter the numerical value in the blank provided to the left of the structure. -_______

Correct Answer
verified

Which of the following combinations of peaks appears in the ¹H NMR spectrum of 1,2-dimethyoxyethane, CH₃OCH₂CH₂OCH₃?

Correct Answer
verified

Identify the compound (C₃H₇Cl) that gives the following ¹H NMR spectrum.

Correct Answer
verified

Exam 13: Nuclear Magnetic Resonance Spectroscopy

Which of the following combinations of peaks appears in the 1H NMR spectrum of diethyl ether, CH3CH2OCH2CH3?

Correct AnswerverifiedShow Answer

Predict the splitting of each of the numbered hydrogen atoms in the structure below in a 1H NMR spectrum. Identify as singlet, doublet, triplet, quartet, quintet, sextet, septet, .... Place the correct splitting in the blank to the left of the number. -______ 1

Correct AnswerverifiedShow Answer

Identify the compound (C8H10) that gives the following 1H NMR spectrum.

Correct Answerverifiedo-xylene (1,2-dimethylbenzene)

Identify the compound (C8H10) that gives the following 1H NMR spectrum.

Correct Answerverifiedp-xylene (1,4-dimethylbenzene)

Which C6H12O2 compound gives the following 1H NMR spectrum?

Correct AnswerverifiedC

Which of the following compounds gives a 1H NMR spectrum consisting of only two triplets and a singlet?

Correct AnswerverifiedShow Answer

Which of the following is not true regarding 1H NMR spectroscopy?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

For each of the compounds below tell how many signals you would expect the molecule to have in its normal, broadband hydrogen-decoupled 13C NMR spectra. Enter the numerical value in the blank provided to the left of the structure. -_______

Correct AnswerverifiedShow Answer

What is the hydrogen deficiency index for a compound with a molecular formula of C6H6Br2?

Correct AnswerverifiedShow Answer

Which of the following compounds gives a 1H NMR spectrum consisting of only a singlet, triplet and quintet?

Correct AnswerverifiedShow Answer

Which C6H12O2 compound gives the following 1H NMR spectrum?

Correct AnswerverifiedShow Answer

Which C9H10O compound gives the following 1H NMR spectrum?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Predict the splitting of each of the numbered hydrogen atoms in the structure below in a 1H NMR spectrum. Identify as singlet, doublet, triplet, quartet, quintet, sextet, septet, .... Place the correct splitting in the blank to the left of the number. -______ 1

Correct AnswerverifiedShow Answer

What is the hydrogen deficiency index for a compound with a molecular formula of C12H16O?

Correct AnswerverifiedShow Answer

What is the hydrogen deficiency index for a compound with a molecular formula of C6H11N?

Correct AnswerverifiedShow Answer

For each of the compounds below tell how many signals you would expect the molecule to have in its normal, broadband hydrogen-decoupled 13C NMR spectra. Enter the numerical value in the blank provided to the left of the structure. -_______

Correct AnswerverifiedShow Answer

Which of the following combinations of peaks appears in the 1H NMR spectrum of 1,2-dimethyoxyethane, CH3OCH2CH2OCH3?

Correct AnswerverifiedShow Answer

Identify the compound (C3H7Cl) that gives the following 1H NMR spectrum.

Correct AnswerverifiedShow Answer

Which of the following combinations of peaks appears in the ¹H NMR spectrum of diethyl ether, CH₃CH₂OCH₂CH₃?

Correct Answer
verified

Predict the splitting of each of the numbered hydrogen atoms in the structure below in a ¹H NMR spectrum. Identify as singlet, doublet, triplet, quartet, quintet, sextet, septet, .... Place the correct splitting in the blank to the left of the number. -______ 1

Correct Answer
verified

Identify the compound (C₈H₁₀) that gives the following ¹H NMR spectrum.

Correct Answer
verified
o-xylene (1,2-dimethylbenzene)

Identify the compound (C₈H₁₀) that gives the following ¹H NMR spectrum.

Correct Answer
verified
p-xylene (1,4-dimethylbenzene)

Which C₆H₁₂O₂ compound gives the following ¹H NMR spectrum?

Correct Answer
verified
C

Which of the following compounds gives a ¹H NMR spectrum consisting of only two triplets and a singlet?

Correct Answer
verified

Which of the following is not true regarding ¹H NMR spectroscopy?

Correct Answer
verified

Correct Answer
verified

For each of the compounds below tell how many signals you would expect the molecule to have in its normal, broadband hydrogen-decoupled ¹³C NMR spectra. Enter the numerical value in the blank provided to the left of the structure. -_______

Correct Answer
verified

What is the hydrogen deficiency index for a compound with a molecular formula of C₆H₆Br₂?

Correct Answer
verified

Which of the following compounds gives a ¹H NMR spectrum consisting of only a singlet, triplet and quintet?

Correct Answer
verified

Which C₆H₁₂O₂ compound gives the following ¹H NMR spectrum?

Correct Answer
verified

Which C₉H₁₀O compound gives the following ¹H NMR spectrum?

Correct Answer
verified

Correct Answer
verified

Predict the splitting of each of the numbered hydrogen atoms in the structure below in a ¹H NMR spectrum. Identify as singlet, doublet, triplet, quartet, quintet, sextet, septet, .... Place the correct splitting in the blank to the left of the number. -______ 1

Correct Answer
verified

What is the hydrogen deficiency index for a compound with a molecular formula of C₁₂H₁₆O?

Correct Answer
verified

What is the hydrogen deficiency index for a compound with a molecular formula of C₆H₁₁N?

Correct Answer
verified

For each of the compounds below tell how many signals you would expect the molecule to have in its normal, broadband hydrogen-decoupled ¹³C NMR spectra. Enter the numerical value in the blank provided to the left of the structure. -_______

Correct Answer
verified

Which of the following combinations of peaks appears in the ¹H NMR spectrum of 1,2-dimethyoxyethane, CH₃OCH₂CH₂OCH₃?

Correct Answer
verified

Identify the compound (C₃H₇Cl) that gives the following ¹H NMR spectrum.

Correct Answer
verified