B(Choose the most prominent frequency. Do not include units in your answer. Use only the frequencies listed below. Write the letter of the compound,followed by the range of frequencies, separated by a comma. Example. "A,1600-1850". If there is more than one correct answer, only give one.)BondStretching frequency (cm²)IntensityO-H (alcohol)3200-3650Medium, broadO-H (carboxylic acid)2500-3300Strong, broadN-H3100-3550MediumC-H (alkane)2850-3000MediumC-H (alkene)3000-3100Medium to strongC-H (alkyne)3300Weak to mediumC=C2100-2250WeakC=C1600-1680Weak to mediumC=O (aldehyde/ketone) 1630-1820StrongC=O (ester)1735-1800StrongC=O (carboxylic acid)1700-1725Strong

Structure A is aldehyde and structure B is alcohol. Aldehyde shows most prominent peak for carbonyl…

А B (Choose the most prominent frequency. Do not include units in your answer. Use only the frequencies listed below. Write the letter of the compound, followed by the range of frequencies, separated by a comma. Example. "A,1600-1850". If there is more than one correct answer, only give one.)

А B (Choose the most prominent frequency. Do not include units in your answer. Use only the frequencies listed below. Write the letter of the compound, followed by the range of frequencies, separated by a comma. Example. "A,1600-1850". If there is more than one correct answer, only give one.)

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL4: Proton (1h) Nmr Spectroscopy

Section: Chapter Questions

Problem 12CTQ

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Question

100%

B
(Choose the most prominent frequency. Do not include units in your answer. Use only the frequencies listed below. Write the letter of the compound,
followed by the range of frequencies, separated by a comma. Example. "A,1600-1850". If there is more than one correct answer, only give one.)
Bond
Stretching frequency (cm²)
Intensity
O-H (alcohol)
3200-3650
Medium, broad
O-H (carboxylic acid)
2500-3300
Strong, broad
N-H
3100-3550
Medium
C-H (alkane)
2850-3000
Medium
C-H (alkene)
3000-3100
Medium to strong
C-H (alkyne)
3300
Weak to medium
C=C
2100-2250
Weak
C=C
1600-1680
Weak to medium
C=O (aldehyde/ketone) 1630-1820
Strong
C=O (ester)
1735-1800
Strong
C=O (carboxylic acid)
1700-1725
Strong

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