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Q1. Why all the proton magnetic resonance signals found at different frequencies? After all they all arise from the magnetic properties of the same nucleus, namely Proton (H). Q2. How many different chemical shifts do you expect for H nuclei in the following molecules? Where there is more than one chemical shift expected what will be the relative intensities of the different signals? CH4 ii) CH3CH3 iii) CH3CH2CH3 iv) H2C=CH2 v) H2C=CHBr i) Q3.. What spin-spin coupling patterns do you expect for each distinct set of H nuclei in the following molecules. i) CH3CHC12 ii) CH3CHCICH3 iii) CH30CH2CH3 Q4. Ethanol proton NMR without integration values. Why -OH proton doesn't show coupling means give singlet instead of triplet? Write down a solid reason. CH₂CH₂OH CH₂CH₂OH

Q1. Why all the proton magnetic resonance signals found at different frequencies? After all they all arise from the magnetic properties of the same nucleus, namely Proton (H). Q2. How many different chemical shifts do you expect for H nuclei in the following molecules? Where there is more than one chemical shift expected what will be the relative intensities of the different signals? CH4 ii) CH3CH3 iii) CH3CH2CH3 iv) H2C=CH2 v) H2C=CHBr i) Q3.. What spin-spin coupling patterns do you expect for each distinct set of H nuclei in the following molecules. i) CH3CHC12 ii) CH3CHCICH3 iii) CH30CH2CH3 Q4. Ethanol proton NMR without integration values. Why -OH proton doesn't show coupling means give singlet instead of triplet? Write down a solid reason. CH₂CH₂OH CH₂CH₂OH

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Q1. Why all the proton magnetic resonance signals found at different frequencies? After all they all arise from the magnetic properties of the same nucleus, namely Proton (H). Q2. How many different chemical shifts do you expect for H nuclei in the following molecules? Where there is more than one chemical shift expected what will be the relative intensities of the different signals? CH4 ii) CH3CH3 iii) CH3CH2CH3 iv) H2C=CH2 v) H2C=CHBr i) Q3. . What spin-spin coupling patterns do you expect for each distinct set of H nuclei in the following molecules. i) CH3CHC12 ii) CH3CHCICH3 iii) CH30CH2CH3 Q4. Ethanol proton NMR without integration values. Why -OH proton doesn't show coupling means give singlet instead of triplet? Write down a solid reason. CH₂CH₂OH CH₂CH₂OH Q5. What is diamagnetic Anisotropy/Diamagnetic shielding? It is caused by local diamagnetic current. How?
Transcribed Image Text:Q1. Why all the proton magnetic resonance signals found at different frequencies? After all they all arise from the magnetic properties of the same nucleus, namely Proton (H). Q2. How many different chemical shifts do you expect for H nuclei in the following molecules? Where there is more than one chemical shift expected what will be the relative intensities of the different signals? CH4 ii) CH3CH3 iii) CH3CH2CH3 iv) H2C=CH2 v) H2C=CHBr i) Q3. . What spin-spin coupling patterns do you expect for each distinct set of H nuclei in the following molecules. i) CH3CHC12 ii) CH3CHCICH3 iii) CH30CH2CH3 Q4. Ethanol proton NMR without integration values. Why -OH proton doesn't show coupling means give singlet instead of triplet? Write down a solid reason. CH₂CH₂OH CH₂CH₂OH Q5. What is diamagnetic Anisotropy/Diamagnetic shielding? It is caused by local diamagnetic current. How?
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