Question

Question 56 (1.5 points) How would you use 1H NMR spectroscopy to distinguish between the following compounds based on the benzene ring protons? Benzene protons for I and Il both show up between 7.0 - 8.0 ppm Benzene protons for I show up between 6.0 - 7.0 ppm and Il between 7.0 - 8.0 ppm Benzene protons for I and Il both show up between 6.0 - 7.0 ppm Benzene protons for I show up between 7.0 - 8.0 ppm and Il between 6.0 - 7.0 ppm

Answer 1

No. 50 I Electron withdrawing group reduces e- density near to the proton Protons of benzene are deshielded. In case I, e density is reduced by -R-effect of x=0 group, while in case I è density is slightly reduced by aI effect of oratom. since Resonance effect is much more pronounced than I effect. " Benzene I protons are more deshielded.. & value will be more as compare to proton of Benzene I. (doption correct.