Do colorless solutions have absorption spectra? Explain.

i don't know if its because it absorbs all wavelengths of light this seems to be a trick question.

well the key word here is colorless.

the electromagnetic spectrum goes beyond the visible spectrum in both directions.

Yes, IR spectroscopy is used to identify organic functional groups, and the frequencies that it uses are colorless to our eyes. UV spectroscopy is similar except it uses UV light, which is also colorless to our eyes, UV spectroscopy is used to signal double bonds.

So it's not really a trick question so much, just obscure.

Yes, but not within the range of visible light.