Question

Short answer

${}^{13}\mathrm{C}$spectroscopy gives all the types of carbon signals. The carbon present in a different environment gives different signals.

Step-by-step solution

Step 1: ${}^{\mathbf{13}}\mathbf{C}$ NMR spectroscopy

${}^{13}\mathrm{C}$spectroscopy gives all the types of carbon signals. The carbon present in a different environment gives different signals.

Constitutional isomers

The constitutional isomers give different signals due to different orientations of the groups. Different orientations give different chemical environment.

Explanation

The constitutional isomers of ${\mathrm{C}}_4{\mathrm{H}}_9\mathrm{B}\mathrm{r}$ and their corresponding signals are shown as:

Four constitutional isomers of${\mathrm{C}}_4{\mathrm{H}}_9\mathrm{B}\mathrm{r}$