I need help answering these 5 questions please

1. Choose the correct reagent(s) for the following addition reaction. a. 1) BH3/THF 2) H2O2,NaOH b. Dilute H2SO4(aq) c. Concentrated H2SO4 (aq) d. 1) Hg(OAc)2, H2O 2) NaBH4 e. 1) PhCOOH 2) H3O+ f. OsO4,H2O2 2. For the following compound, put an asterisk on the carbon which the bromide ion will attack when that compound is treated with HBr in peroxide. 3. Select all major final products of the following short synthesis. 1) PhCO3H a. OH b. OH e. f. 9. 4. Products A, B, and C below can all be made from the same starting alkyne in a single reaction each. Match each product with the appropriate reagents to make them from the given alkyne. a. Br2/CH2Cl2 b. OsO4, NMO c. HgSO4/H2SO4,H2O d. Na,NH3 (I) e. H2,Pt f. H2, Lindlar's catalyst 5. For each of the following molecules in a solvolysis reaction, choose whether it will undergo a hydride shift, methyl shift, or no rearragement. a. b. d. c