Consider the following haloalkanes: 1.CH3F 2.CH3Br 3.CH3CI 4.CH3I The increasing order of reactivity in SN reactions is:
Correct answer: B. 1<3<2<4
- A. 4<3<2<1
- B. 1<3<2<4
- C. 1<2<3<4
- D. 1<2<4<3
Explanation
Correct Option:The correct increasing order of reactivity in SN reactions is B) 1<3<2<4. In other words, the reactivity increases in the order CH3F < CH3Cl < CH3Br < CH3I. Iodomethane (CH3I) is the most reactive, while fluoromethane (CH3F) is the least reactive among the given haloalkanes.
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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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