For peaks between 2 and 3, there is uncertainty, so ignore them initially, and deduce other peaks instead, than come back to them. For D2O shake, it removes all H bonded to O and all H bonded to N. For joining the peaks together, use the pairing - the number of H on adjacent carbons. When we did this last year, first we made an information table of each peak… than we had to join them using pairing. Practice doing NMR will help you gain experience to pair things better and faster - as you notice patterns. A peak at 7 is benzene, with the multiplet, which is helpful. It makes the peak at 2 to 3, easier, especially as you know the relative area.
Sometimes, you see a peak at 1 with relative area 9. What does this mean…
It means C(CH3)3, 3 CH3 bonded to a single C, this is from experience.
Notice that it said a possible structure, if it gave a C13 NMR as well, we could work out the carbon environments…
A NMR question will always come with additional things you will need to do:
Find empirical formula, molecular formula, use IR spectrum (functional groups), use mass spectrum (fragment ions, M+ peak), H NMR, C NMR, H NMR with and without D2O…