1. What is the expected major product from the reaction of (4R,5R,6S)-6-chloro-7-cycloheptyl-4,5-epoxy-5-ethyl-2,6-dimethylheptane-1-ol with 48% aqueous hydrobromic acid?Select one:a. (4R,5R,6R)-5-bromo-6-chloro-7-cycloheptyl-5-ethyl-2,6-dimethylheptane-1,4-diolb. (4R,5R,6S)-4-bromo-6-chloro-7-cycloheptyl-5-ethyl-5-hydroxy-2,6-dimethylheptane1-olc. (4R,5R,6R)-4-bromo-6-chloro-7-cycloheptyl-5-ethyl-2,6-dimethylheptane-1,5-diold. (4R,5S,6S)-5-bromo-6chloro-7-cycloheptyl-5-ethyl-2,6-dimethylheptane-1,4-diole. (4S,5S,6R)-5-bromo-6-chloro-7-cycloheptyl-5-ethyl-4-hydroxy-2,6-dimethylheptane-1-ol2. Which of the following sets of compounds contain a pair of diastereomers?(i) (S)-2-tert-butyl-2-methylcyclobutanone & (R)-2-tert-butyl-2-methylcyclobutanone(ii) salt of (R)-phenylethylammonium with (2S,3S)-2,3-dihydroxybutanedioic acid & salt of (S)-phenylethylammonium with (2S,3S)-2,3-dihydroxybutanedioic acid(iii) (S)-1-cyano-2-propanol & (R)-1-cyano-2-propanol(iv) (S)-methylphenyl-n-propylphosphine & (R)-methylphenyl-n-propylphosphine(v) (2S,3R)-2,3-butanediol & (2R,3S)-2,3-butanediolSelect one:a. all the aboveb. (iv) onlyc. (i) and (v)d. (i) onlye. (ii) only3. Which of the following sets of compounds are enantiomers?(i) (1R,4S)-1,4-cyclohexanediol & (1S,4S)-1,4-cyclohexanediol(ii) (1R,2R)-cyclopentane-1,2-diol & (1R,2S)-cyclopentane-1,2-diol(iii) (3S,4R)-3,4-dibromo-3,4-dimethylhexane & (3R,4R)-3,4-dibromo-3,4-dimethylhexane(iv) (S)-2-chlorocylopropanone & (R)-2-chlorocylopropanone(v) (R)-a-methylbenzylamine & (S)-a-methylbenzylamineSelect one:a. (i) onlyb. (i) and (iii) onlyc. (iii) and (iv)d. (iv) onlye. (iv) and (v)4. Which of the following are meso compounds?(i) (1R,2S,3S,4R)-1,2-dibromo-3,4-dimethylcyclobutane(ii) (1R,3S)-1,3-cyclohexanediol(iii) (2R,3S)-2,3-dibromobutanedioic acid(iv) (3R,4S)-3,4-dibromo-3,4-dimethylhexane(v) (2R,3S,4S)-2,3,4-tribromopentaneSelect one:a. (iv) onlyb. (i) and (ii) onlyc. all the aboved. none of the abovee. (iii) and (v) only5. Which of the following compounds DO NOT contain a plane of symmetry?(i) trans-3,4-diethylpyrrolidine(ii) trans-2-butene(iii) cis-1,2-cyclobutanediol(iv) 4-chlorocyclohexanol(v) cis-1,2-dibromocyclopentaneSelect one:a. (i) onlyb. (ii) onlyc. (i) and (iii) onlyd. all the abovee. none of the above6. What is the expected major product arising from the reaction of (2R,3E)-4-phenyl-3-butene-2-ol with sodium dichromate and sulfuric acid?Select one:a. (2R)-4-phenyl-2-butanolb. (3Z)-4-phenyl-2-butanonec. 4-phenyl-2-butanoned. 4-phenyl-2-butanole. (3E)-4-phenyl-3-buten-2-one7. What is the expected major organic product expected from reaction of cyclopentene with cold potassium permanganate under basic conditions?Select one:a. a pair of diastereomeric 1,2-cyclopentanediolsb. (1R,2R)-1,2-cyclopentanediolc. meso-1,2-cyclopentanediold. (1S,2S)-1,2-cyclopentanediole. no reaction