Acid catalyzed hydrolysis of hoch2ch2c(ch3)2cn forms compound a (c6h10o2). a shows a strong peak in its ir spectrum at 1770 cm−1 and the following signals in its 1 h nmr spectrum: 1.27 (singlet, 6 h), 2.12 (triplet, 2 h), and 4.26 (triplet, 2 h) ppm. draw the structure for a and select the correct answers to complete a mechanism that accounts for its formation.