Skip to content
← Published challenges

Checkpoint · revision 1

NMR Spectroscopy Checkpoint

Check resonance, chemical shift, integration, and first-order splitting without exposing the answer key to the browser.

Scenario

You are interpreting a simple educational proton NMR model before moving to a measured spectrum.

Scored questions

Question 1

Which quantity is proportional to relative proton count under suitable proton NMR conditions?

Question 2

A proton has two equivalent neighbouring protons. What first-order multiplicity does the n + 1 rule predict?

Question 3

At 4.7 T, the model uses about 200 MHz for proton resonance. If frequency scales linearly, what value corresponds to 9.4 T?

Question 4

Why is chemical shift reported in ppm?

Answer keys, scoring tolerance, XP, and awards stay on the server. Retrying the same attempt cannot award twice.