Final answer:
In IR Spectroscopy, cyclohexanone presents a strong, sharp absorption peak for the carbonyl group in the range of 1650-1750 cm-1, typically near 1716 cm-1.
Step-by-step explanation:
If cyclohexanone is present, the Infrared (IR) Spectroscopy will show a characteristic absorption peak for the carbonyl group. The peak in question is due to the carbonyl double bond, typically found in the range of 1650-1750 cm-1, with ketones such as cyclohexanone often absorbing near 1716 cm-1.
This absorption is manifested in the spectrum as a strong and sharp peak, as the double bond of the carbonyl group has a significant dipole moment that changes during vibration, making it highly detectable via IR spectroscopy.