9. Which of the following statements about stereoisomers is INCORRECT? A) Stereoisomers have identical IUPAC names excopt for a prefix like R or s. B) Stereoisomers differ in configuration. C) Stereoisomers always have the same functional groups. D) Stereoisomers differ only in their structural formula. 10. Give the IUPAC name for the following compound A) (R) 3-Bromopentane B) (S) 3-Bromopentane C) (R) 3-Bromohexane D) (S) 3-Bromohexane 11. Consider the following species: CH3CH2OH;CH3CH2O; Which of the following statements below is CORRECT? A) Ethoxide and ethanol can both act as Lewis acids or an electrophiles Ethoxide promotes nucleophilic substitution reaction via the SN1 mechanism Ethoxise is a stronger nucleophile than ethanol Ethoxide is an electrophile 12. Which of the following statemant perlaining to an SN reaction is INCORRECT? A) The rete of the roaction is dependent of the concentration of the nucleophile. 8) The reacion proceeds with simultaneous bond formation and bond breaking. Not yet answered Marked out of 20 C) Bulky groups around the reaction site speeds up the reaction. D) The nucleophile attacks the carbon from the side of the molecule cpposite the group being displaced. Select one: A. C B. B C. D D. A