wavelength m 5 55 6 8 9 10 25 100 3 35 4 45 7 1 12 13 14 15

wavelength (m) 5 5.5 6 8 9 10 2.5 100 3 3.5 4 4.5 7 1 12 13 14 15 16 60 N 3500 2500 2000 1800 1600 1400 1200 1000 800 wavenumber (cm) Check all that apply conjugated ketone ester amide nitrile alkyne

Solution

For conjugated ketones, the spectra should appear between 1700-1750 cm-1

Ester - 1100 -1300 cm-1 for C-O bonding

Amide - 1650-1690 cm1 for C=O bonding

Alkyne - 3300-3400 cm-1 for C-H bonding