Title: Q10 set

Q: Compound u was found to contain a primary amide functional group via IR spectroscopy. How would this signal(s) be expected to appear in an IR spectrum?
- 2 peaks at ~1700 cm^-1 and 2 peaks at ~3500 cm^-1
- 2 peaks at ~1700 cm^-1 and 1 peak at ~3500 cm^-1
- 1 peak at ~1700 cm^-1 and 1 peak at ~3500 cm^-1
- 1 peak at ~1700 cm^-1 and 2 peaks at ~3500 cm^-1
A: 1 peak at ~1700 cm^-1 and 2 peaks at ~3500 cm^-1

Q: Compound u was found to contain a primary amide functional group via IR spectroscopy. How would this signal(s) be expected to appear in an IR spectrum?
- 2 peaks at ~1700 cm^-1 and 2 peaks at ~3500 cm^-1
- 2 peaks at ~1700 cm^-1 and 1 peak at ~3500 cm^-1
- 1 peak at ~1700 cm^-1 and 1 peak at ~3500 cm^-1
- 1 peak at ~1700 cm^-1 and 2 peaks at ~3500 cm^-1
A: 2 peaks at ~1700 cm^-1 and 2 peaks at ~3500 cm^-1

Q: Compound t was found to possess major IR absorption peaks at ~3100 cm^-1, ~3000 cm^-1 and ~1650 cm^-1 respectively. Which structure was the compound concluded to be?
- 2-cylcohexylacetic acid: (c-C6H11)-CH2-COOH [Image: question10d]
- 2-cyclohexylacetonitrile: (c-C6H11)-CH2-C≡N [Image: question10c]
- 3-cyclohexyl-1-propyne: (c-C6H11)-CH2-C≡CH [Image: question10b]
- allylcyclohexane: (c-C6H11)-CH2-CH=CH2 [Image: question10a]
A: allylcyclohexane: (c-C6H11)-CH2-CH=CH2 [Image: question10a]