16. 17. 18. (a) (a) SN2 CHS -CHECH- CHa-CH2 - t I ? Which alkyl halide from the following pairs...
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16. 17. 18. (a) (a) SN2 CHS -CHECH- CHa-CH2 - t I ? Which alkyl halide from the following pairs would you expect to react more rapidly by an SN2 mechanism and why ? CHs - CHa- Br