The common practice of washing laboratory glassware with acetone can lead to unintended consequences. For example, a student plans to carry out the preparation of methylmagnesium iodide, CH3MgI, which he will add to benzaldehyde, C6H5CHO. What compound is he intending to synthesize after aqueous work-up? Using his freshly washed glassware, he carries out the procedure arid finds that he has produced an unexpected tertiary alcohol as a product. What substance did he make? How did it form?