-1 3) The IR absorption at 1630 cm belongs to (a) CH;-C=N )CH>-CH=CHICH, (c) CH2=CH-CH=CH-CH2 (d) H-C=C-CH,CH3 4) The "m/z value" and "the relative abundance" for M+2 peak in (CH3)2CH-Br? (a) 123 and 25% (b) 125 and 50% (c) 125 and 75% (d) 123 and 50% 5) Which one of the compounds shows an absence of M* peak? (a) CH3CH,CHO (b) CH;COCH3 (c) CH3(CH2);NH2 (d) CH;(CH2);OH 6) In the molecule, CH,CH,CH(Br)2, the 'H NMR signal for "CH" would show (c) 5.2 ppm (triplet) (d) 7.1 ppm (trip (a) 3.4 ppm (triplet) (b) 1.3 ppm (triplet)

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
icon
Concept explainers
Question
I need help with 3-8
3) The IR absorption at 1630 cm* belongs to
-1
(a) CH3-C=N (b) CH3-CH=C
(c) CH2=CH-CH=CH-CH2 (d) H-C=C-CH;CH3
4) The "m/z value" and "the relative abundance" for M+2 peak in (CH3)¿CH-Br?
(a) 123 and 25%
(b) 125 and 50%
(c) 125 and 75%
(d) 123 and 50%
5) Which one of the compounds shows an absence of M' peak?
(a) CH;CH2CHO
(b) CH;COCH3
(c) CH;(CH2);NH2
(d) CH3(CH2);OH
6) In the molecule, CH3CH,CH(Br)2, the 'H NMR signal for "CH" would show
(a) 3.4 ppm (triplet)
(b) 1.3 ppm (triplet)
(c) 5.2 ppm (triplet)
(d) 7.1 ppm (trip
7)In molecules below, circle the group that showsthe most down fieldin both 'H and 1°C NMR shift.
CH3-CH2-CH2-O-CH-(CH3)2 CICH2-CH=CH-CH3
8) In the molecule CH3-CH2-C=N, 1C NMR shifted at
to show the main functional group (nitrile)-
(a) 868
(b) 538
(c) 1228
(d) 1028
9) Which one of the molecules would generate the following 'H NMR spectrum?
Br
doublut
quarter
1,43
CH3 Cl.4)
Mouz
Transcribed Image Text:3) The IR absorption at 1630 cm* belongs to -1 (a) CH3-C=N (b) CH3-CH=C (c) CH2=CH-CH=CH-CH2 (d) H-C=C-CH;CH3 4) The "m/z value" and "the relative abundance" for M+2 peak in (CH3)¿CH-Br? (a) 123 and 25% (b) 125 and 50% (c) 125 and 75% (d) 123 and 50% 5) Which one of the compounds shows an absence of M' peak? (a) CH;CH2CHO (b) CH;COCH3 (c) CH;(CH2);NH2 (d) CH3(CH2);OH 6) In the molecule, CH3CH,CH(Br)2, the 'H NMR signal for "CH" would show (a) 3.4 ppm (triplet) (b) 1.3 ppm (triplet) (c) 5.2 ppm (triplet) (d) 7.1 ppm (trip 7)In molecules below, circle the group that showsthe most down fieldin both 'H and 1°C NMR shift. CH3-CH2-CH2-O-CH-(CH3)2 CICH2-CH=CH-CH3 8) In the molecule CH3-CH2-C=N, 1C NMR shifted at to show the main functional group (nitrile)- (a) 868 (b) 538 (c) 1228 (d) 1028 9) Which one of the molecules would generate the following 'H NMR spectrum? Br doublut quarter 1,43 CH3 Cl.4) Mouz
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
IR Spectroscopy of Organic Molecules
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY