H NMR Table Video Lessons

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Problem: For the chemical structure given below, identify the group of protons that is: A) most shielded B) least shieldedC) the most downfield D) the most upfield

FREE Expert Solution

Recall the definition of the following:

  • most shielded – protons present in electron-rich regions, lower chemical shift
  • least shielded – protons present near electron-withdrawing groups, the higher chemical shift value
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Problem Details

For the chemical structure given below, identify the group of protons that is: 

A) most shielded 

B) least shielded

C) the most downfield 

D) the most upfield

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