Key words & phrases: acetaldehyde image and diagram explaining the infrared spectrum of ethanal, complete infrared absorption spectrum of ethanal, comparative spectra of ethanal, prominent peaks/troughs for identifying functional groups in the infrared spectrum of ethanal, important wavenumber values in cm-1 for peaks/troughs in the infrared spectrum of ethanal, revision of infrared spectroscopy of ethanal, fingerprint region analysis of ethanal, how to identify ethanal from its infrared spectrum, identifying organic compounds like ethanal from their infrared spectrum, how to analyse the absorption bands in the infrared spectrum of ethanal detection of functional groups in the ethanal molecule example of the infrared spectrum of a molecule like ethanal with a aldehyde functional group acetaldehyde explaining the infrared spectrum of ethanal How do you interpret the infrared absorption spectrum of ethanal CH3CHO How to interpret the infrared spectrum of ethanal CH3CHO Explanatory diagram of the infrared spectrum of the ethanal CH3CHO molecule in terms of its molecular structure. Listing data of the prominent main wavenumber peaks troughs in the infrared spectrum of ethanal CH3CHO. How to explain the infrared spectrum of ethanal CH3CHO. Use of the infrared spectrum of ethanal CH3CHO, identification of ethanal CH3CHO from its infrared spectrum - fingerprint wavenumber pattern to identify the ethanal CH3CHO molecule. The uses of the infrared spectrum of the ethanal CH3CHO molecule. The distinctive features of the infrared spectrum of the ethanal CH3CHO molecule explained interpretation diagram explaining the peaks-trough of the transmittance of the infrared spectrum of ethanal CH3CHO what does the infrared spectrum tell you about the structure and properties of the ethanal CH3CHO molecule? How is infrared spectrum of ethanal CH3CHO used to identify ethanal CH3CHO?