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[tex]cm^{-1}[/tex] on the uploaded question
Explanation:
The group which is being highlighted is an Aldehyde functional group denoted by this structure ([tex]=C-H[/tex])
This groups stretch on the infrared spectrometer gives two medium intensities peaks
Its stretch comes at 2820 - 2850 [tex]cm^{-1}[/tex] peak 1
and at 2720 - 2750 [tex]cm^{-1}[/tex] peak 2
So the correct click would be on any of the two peaks between 2500 - 3000 [tex]cm^{-1}[/tex] region
