A Compound Gave a Signal at 203 Ppm in Its ${}^{13 }\mathrm { C } \mathrm { NMR }$

question 70

Essay

A compound gave a signal at 203 ppm in its ${}^{13 }\mathrm { C } \mathrm { NMR }$ spectrum. How would it be possible to tell if the compound is an aldehyde or a ketone in a proton-coupled ${}^{13} \mathrm { C } \text { NMR }$ pectrum?