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The chemical environment of protons can be deduced from their chemical shifts. W

ID: 716992 • Letter: T

Question

The chemical environment of protons can be deduced from their chemical shifts. What are the relative chemical shifts of the protons at the labeled positions? [Protons that are highly shielded have low delta (chemical shift) values.] 1) The proton with the lowest delta value (the most shielded) is The proton with the highest delta value (the most deshielded) is 2) The proton with the lowest delta value (the most shielded) is The proton with the highest delta value (the most deshielded) is An error has been detected in your answer. Check for typos etc. before submitting your answer 2 more group attempts remaining

Explanation / Answer

Q1. The proton with the lowest delta value (the most shielded) is b

The proton with the highest delta value (the most deshielded) is a

Q2. The proton with the lowest delta value (the most shielded) is c

The proton with the highest delta value (the most deshielded) is b

Explanation

In Q1 the compound has only one functional group of ester and the most shielded protons are the farthest from functional group and the most deshielded protons are the closest to functional group

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