Question

please im stuck on these three questions I have no idea about any

9. What type(s) of molecular m Wype(s) of molecular motion is one observed using infrared speetroscopy A. B. C. D. Stretching and bending Rotation and excitation Spin flipping Fragmentation 10. The functional group region of an infrared spectrum is A. B. C. where the cations appear. >1500 cm <1500 cm! >2500 cm 11. Stronger bonds will be found where in the infrared spectrum? A. B. Higher molecular weight Lower molecular weight Lower wavenumbers Higher wavenumbers C. D.

Answer 1

The olutio n is a folloas given Tfnequency te absonbed infnaned madia tion matehes the vibnationar faquencytnetehing ben ding? and Hence t omeet option is A. St0etehing lben ding anol 1 In the funetional gasup egien thene fetnonghs Thatls ane One to a pen funetional frunctional g egien150o c copnect opton is B So, hene, the 150 em. Stroengen bends eneng are neede d mone otvoetch. So wave number oinfranet spectoum hrutd be ighero Hem ce He co rpect op tion isD. ti oler warENunbers