Aqueous KOH causes SN-reaction in alkylhalide. On which of the following alkylhalides KOHaq would like to attack easily.
Correct answer: D. CH3 − CH2 − I
- A. CH3 − CH2 − Cl
- B. CH3 − CH2 − Br
- C. CH3 − CH2 − F
- D. CH3 − CH2 − I
Explanation
Iodide ion is a very good leaving group due to low bond energy so the attack of KOH(aq) to proceed SN reaction and hence it can be easily substituted.
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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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