Which of the following is an intermediate compound in SN1:
Correct answer: D. Carbocation
- A. Ethoxide ion
- B. Alkyl halide
- C. Alkene
- D. Carbocation
Explanation
The product of step 1, carbocation, will be the reactant of the next step and is called the intermediate for the SN1 reaction. Intermediate is the unstable, highly-reactive specie with a very short lifetime. The carbocation intermediate is in trigonal planar shape, with the empty 2p orbital particular to the plane.
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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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