Question

10) 6. True or False: IR is used to tell how many chemically different types of hydrogens F T a. T F CDCI, is commonly used as an NMR solvent. b. T F Compounds with no nitrogen always have an even mass number. C. d. Aldehydes are easy to detect in HNMR. T F Neighboring hydrogens always show spin-spin splitting. T F e.

Answer 1

False IR gives the infoumatlenabout bend connechy en the basis dipole mement so gn many cases like Ctz2O 9t can'E diferentiate behoean CH& CH2 because both have neanly same cipole mement. lso 9t gives njoumahon alout no dlasteneotopic pHoton ) CDur is em me used as NMR Solvenk us coorect Stalement lecause mest show beler solubility in COur than Solvent. dlso COu is cheaper than DMSO 4 CO3 OD. c False. t is not always e that compound wotthout NiHogen fo eg toy phenyl borenic acid have maus lu9.4 dldehyde are Btnglet proton peakat 10ppm. Tue stalement the onganic conmpound other dleuteratd any are alioays have even mass num bes how sharp to detect i'n NMR They easy e) Neighlbowding hydragens ahways shouo spin-apin coupting gthe secondaryy meganehe field generated by Loecause neighbowrding hydnogen atach. t oill eimesy dlissupt the' magnetic moment ou fauotr the magnahc of neighlbowing hyduogen toith sespech to eiemal magnetic Field moment