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NEETChemistryHaloalkanes and Haloarenes

Give reason why the treatment of alkyl chlorides with aqueous KOH leads to the formation of alcohols but in the presence of alcoholic KOH, alkenes are major products.

Options

  1. AAqueous KOH provides a nucleophilic environment, favoring alcohol formation.
  2. BAlkoxide ion present in alcoholic KOH, is not only a strong nucleophile but also a strong base so preferential
  3. CAqueous KOH promotes the formation of alkenes due to its acidic nature.
  4. DAlcoholic KOH enhances the formation of alcohols through radical reactions.

Correct answer

B. Alkoxide ion present in alcoholic KOH, is not only a strong nucleophile but also a strong base so preferential

Step-by-step solution

Correct Option is : (B) Alkoxide ion present in alcoholic KOH, is not only a strong nucleophile but also a strong base so preferentially eliminate a molecule of HCl from alkyl halide to from alkenes. Hence, on treatment of alkyl chloride with aqueous KOH leads to the formation of alcohol but in the presence of alcoholic KOH, alkene is the major product.

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