Select the IR spectrum that corresponds best to 3-hydroxy-2-butanone. (See the Hint for the structure.) Key…
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Question “Select the IR spectrum that corresponds best to 3-hydroxy-2-butanone. (See the Hint for the structure.) Key…”
Select the IR spectrum that corresponds best to
3-hydroxy-2-butanone. (See the Hint for the structure.) Key
absorptions are marked on the spectra.
Answer
The IR spectrum analyzes the interaction between a molecule and infrared radiation. IR spectra can be used to identify different functional groups in a compound.
Different functional groups give absorption bands at different intensities and ranges in IR. Knowing the absorption range allows you to predict the functional groups present in a given molecule. Below is a table that shows the IR absorption for common functional groups.
Because their bonds are polar, these groups absorb IR radiation. This causes the bonds to vibrate at a wavenumber. Different functional groups can then be identified in the IR spectra by using wave numbers.
Draw the 3-hydroxy-2-butanone structure as shown below.
Identify the IR range of the functional group in the compound, as shown below.
Third spectrum showing the peak at 3530\,{\rm{c}}{{\rm{m}}^{ - 1}}Ans
The third spectrum shows the IR absorption at {\bf{3530}}\,{\bf{c}}{{\bf{m}}^{{\bf{ - 1}}}}
Conclusion
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