Propose structures for the two compounds whose 1H NMR spectra

Propose structures for the two compounds whose 1H NMR spectra are shown.

(a) C4H9Br

(b) C4C8Cl2

TMS O ppm 10 6. Chemical shift (8) 5 3 TMS O ppm 10 8. 6. Chemical shift (8) Intensity Intensity -0o -8o