22) HBr can be added to an alkene in the presence of peroxides (ROOR). What function does the peroxide serve in this reaction? A) nucleophile B) electrophile C) radical chain initiator D) acid catalyst E) solvent 23) Predict the major product of the following reaction. A) B) HBr 0°C D) 24) Acid catalyzed hydration (H2SO4/water/A) of an unknown compound (A)with a chemical formula C6H12. yielded a racemic mixture of product C6H130H. Which, if any, of the following compounds is/are possible structures for the initial compound (A)? 1 A) compound I only B) compounds 2 and 3 C) compound 2 only D) compounds 1 and 3 E) none of the above 3 2 25) Which of the following is the best reaction sequence to use if one wants to accomplish a Markovnikov addition of water to an alkene with minimal skeletal rearrangement? A) water+dilute acid B) water+concentrated acid C) oxymercuration-demercuration D) hydroboration-oxidation E) none of the above