Which of the following statements is not correct for SN2 mechanism reaction?
Correct answer: C. It takes place in the presence of a polar solvent
- A. It is a bimolecular, 2nd order reaction
- B. Order of ease of SN2 mechanism in alkyl halide is 10 alkyl halide > 2o alkyl halide > 30 alkyl halide
- C. It takes place in the presence of a polar solvent
- D. It involves 100% inversion in the products
Explanation
In a polar solvent, the nucleophile is more solvated, leading to a decrease in the mobility and reactivity of the nucleophile. Therefore, a polar solvent disfavors the SN2 reaction. Therefore, option c is correct.
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About Alkyl Halides
Alkyl halides are named and related to their carbon-halogen structure, polarity and reactivity. The key reactions are nucleophilic substitution by SN1 and SN2 mechanisms and elimination by E1 and E2 mechanisms, including how substrate structure, nucleophile, base, solvent and temperature influence substitution versus elimination.
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