英语翻译In theory,we might have expected four sets of proton sig

英语翻译
In theory,we might have expected four sets of proton signals for toluene.However,the resolving power of an nmr spectrometer .good as it is in most applications of such spectroscopy .is not sufficiently good to distinguish among the ortho.meta and para hydrogens of toluene,so that we see ' but two signals in the spectrum of this compound2.