Answer to Question #26961 in Organic Chemistry for Jen

Question

molecular structure for c5h10O

nmr: 9.8, 1.1

Answer 1

If you have a singlet way down at 9.8 ppm (1H) it's probably an aldehydic proton. If there are 9 equivalent hydrogens giving a singlet at 1.1 ppm, it must be a t-butyl group.
O
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(CH₃)₃C-C-H