5

Antwort:

A possible order would be:
E) 1. Number
D) 2. Chemical shifts
A) 3. Relative intensities
C) 4. Splitting of the resonance lines due to spin-spin coupling
F) 5. Coupling constants of the multiplets
B) Irrelevant for this problem!
Learn this sequence of steps and apply it to the substance  
CH3-CH2-CO-CH2-CH3
from step 1! 

Then compare your results here! 
/body>