Question 12 Which of the following would have the smallest AH°hydrog? a. CH3CH2CH=CHCH2CH3 b. CH3CH2C=CCH2CH3 (cis) CCH2CH3 CH3 CH3 c. CH3CH2C=CCH2CH3 (trans) CH3 CH3 d. CH3CH2C CHCH2CH₂ CH3 A Moving to the next question prevents changes to this answer. Question 17 Which set of reagents is used for the Markovnikov addition of water to an alkene without rearrangement? a. BH3, THF followed by H2O2, NaOH b. H₂O, H2SO4 c. Hg(O2CCH3)2, H2O followed by NaBH4, NaOH d. none of these W P DELL Question 19 Alkene chemistry is dominated by what type of reaction? a. substitution b. electrophilic addition c. nucleophilic addition d. elimination e. both b and c A Moving to the next question prevents changes to this answer. Question 7 What is the best choice of reagents to perform the following transformation? a. HgSO4: followed by NaBH4 b. H2O, H2SO4 c. BH3; followed by H2O2 d. OsO4; followed by NaHSO3 OH OH A Moving to the next question prevents changes to this answer. W Question 21 Instructions: Consider the reaction below to answer the following question(s). Alkenes may be hydrated by the hydroboration/oxidation procedure shown. H OH CH3 1. BH, THF CH 2. H₂O2, NaOH, H₂O H Refer to instructions. The intermediate formed in the first step of this reaction is: a. H BH₂ H CH3 b. H OH BH2 CH3 H B H CH3 d. H₂B OH H CH V X X X 18question_num