In IR spectroscopy, which functional group typically shows a strong absorption a
Practice Questions
Q1
In IR spectroscopy, which functional group typically shows a strong absorption around 1700 cm-1?
Alcohols
Aldehydes
Carboxylic acids
Ketones
Questions & Step-by-Step Solutions
In IR spectroscopy, which functional group typically shows a strong absorption around 1700 cm-1?
Step 1: Understand what IR spectroscopy is. It is a technique used to identify functional groups in molecules by measuring how they absorb infrared light.
Step 2: Know that different functional groups absorb infrared light at specific wavelengths, which are measured in cm-1.
Step 3: Identify the functional group in question. The question asks about a strong absorption around 1700 cm-1.
Step 4: Recall that the carbonyl group (C=O) is a common functional group that absorbs strongly in this region.
Step 5: Recognize that ketones are a type of compound that contains a carbonyl group.
Step 6: Conclude that ketones typically show a strong absorption around 1700 cm-1 due to the stretching vibration of the carbonyl bond.
