IB skill practice

Interpret proton NMR spectra for organic structure

Paper 1, Paper 2 5 marks Difficulty 5

Chemical shift evidence

A proton NMR signal in a Auckland HL chemistry tutorial appears at \(2.2\,\text{ppm}\). State what type of evidence this value provides. Use the labelled diagram or spectrum before giving the answer. Enter the answer and choose the interpretation that matches the HL chemistry evidence.

Worked practice: chemistry evidence and answer

Use the chemical evidence first, then enter the result and interpretation that match it.