Compound D, C7H14O, has an 1H-NMR spectrum that exhibits absorption in the alkane region (1 to 2 ?) and shows a triplet at 2.8 ?. Treatment of D, first with aqueous acid and then with KMnO4, yields 2 carboxylic acids identified as acetic acid and pentanoic acid. (KMnO4 cleaves 1,2-diols to yield carboxylic acids.) Propose a structure for compound D. Don't worry about steriochemistry.