According to the Pascal-Meier-Simon rule the highlighted proton in the structure below should have a chemical shift of approximately what value? H3C H,c-O CH3 CI a. 4.74 ppm b. 6.36 ppm с. 4.93 рpm d. 6.23 ppm The aldehyde proton has a high chemical shift BECAUSE it sits in the region of the anisotropic cone where shielding in decreased. a. The first statement is false and the second statement is true b. Both statements are true but the "BECAUSE" is false c. The fist statement is true and the second statement is false d. The statement is entirely false

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Chapter1: Chemical Foundations
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According to the Pascal-Meier-Simon rule the highlighted proton in the structure below should have a chemical shift of approximately what value?
H3C
H2C-O
CH3
H
CI
а. 4.74 ppm
O b. 6.36 ppm
о с. 4.93 ррm
O d. 6.23 ppm
The aldehyde proton has a high chemical shift BECAUSE it sits in the region of the anisotropic cone where shielding in decreased.
a. The first statement is false and the second statement is true
b. Both statements are true but the "BECAUSE" is false
c. The fist statement is true and the second statement is false
d. The statement is entirely false
e. The statement is entirely true
Transcribed Image Text:According to the Pascal-Meier-Simon rule the highlighted proton in the structure below should have a chemical shift of approximately what value? H3C H2C-O CH3 H CI а. 4.74 ppm O b. 6.36 ppm о с. 4.93 ррm O d. 6.23 ppm The aldehyde proton has a high chemical shift BECAUSE it sits in the region of the anisotropic cone where shielding in decreased. a. The first statement is false and the second statement is true b. Both statements are true but the "BECAUSE" is false c. The fist statement is true and the second statement is false d. The statement is entirely false e. The statement is entirely true
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