In a reaction having both alkyl halide and base, the base will attack on _?
Correct answer: C. β-hydrogen
- A. Electrophilic carbon
- B. Nucleophilic carbon
- C. β-hydrogen
- D. None of these
Explanation
In a reaction involving both alkyl halide and a base, the base will attack on β-hydrogen. This is because the base abstracts a proton (hydrogen) from the carbon adjacent to the halogen (α-carbon), resulting in the formation of a double bond and the elimination of the halogen. The carbon with the removed proton is called the β-carbon, and the hydrogen removed is the β-hydrogen. This process is characteristic of elimination reactions, such as E2 reactions. 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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