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

Complete Question

The complete question is shown on the first uploaded image

The correct place to click on any of the  double peak showing between  2500 and 3000 on the uploaded question

Explanation:

The group which is being highlighted is an Aldehyde  functional group denoted by this structure ()

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

Its stretch comes at  2820 - 2850  peak 1

and at  2720 - 2750  peak 2

So the correct click would be on any of the two peaks between 2500 - 3000  region