Question

the first photo has the questions, the second are the H-nmr, C-nmr, and IR.

6. 'H-NMR spectrum On the proton spectrum, interpretate ACTUAL 1H-NMR data, detailing chemical shifts, integrations, and splittings. Draw the structure of the unknown compound and label hydrogens (a, b, orc, etc...) for which signals. 7. 13C-NMR spectrum Draw the structure of your molecule and label carbons (a, b, or c, etc...) are responsible for which signals. 8. IR spectrum • Draw the structure of your molecule and label functional groups are responsible for each stretch.

Answer 1

Hi-NMR. Two equsvalent shows peas near so sppm shown disubstituted ring, of benzene. a $ 8.3 ppm – deshicided Cho near to cool group, more b d 7 g ppm - - CH near to another withdrawing group orodd peale give specta to this 11.0-12 ppm - - cooH range. 2] 13C NMR ranger peak for benzene o 120 ppm - 145 ppm ring. AJ 118 ppm B] 125ppm c] 1 30 ppm D] 140 ppm confirm that their is -COOH group I 170 ppm peak present probable structare Соон Cook Coon CI by Hi NMR

IR 1682.71nt for carboxylic Acid. 3000-3100 coil 1537 crot for for Ar-C-H Ar-c-c- stretching bond. 790-821 cm' it is range for peale c-cl bond by mass or by moleculer wt we get clear Idea of compound.