Question

Infrared (IR) spectroscopy is used to identify functional groups within a molecule. Click on the peak that corresponds to the stretching vibration for the highlighted bond.chemical bonds are given

Answer 1

Complete Question

The complete question is shown on the first uploaded image

Answer:

The correct place to click on any of the double peak showing between 2500 and 3000
`cm^(-1)` on the uploaded question

Step-by-step explanation:

The group which is being highlighted is an Aldehyde functional group denoted by this structure (
`=C-H`)

This groups stretch on the infrared spectrometer gives two medium intensities peaks

Its stretch comes at 2820 - 2850
`cm^(-1)` peak 1

and at 2720 - 2750
`cm^(-1)` peak 2

So the correct click would be on any of the two peaks between 2500 - 3000
`cm^(-1)` region