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NEET2008ChemistryChapterActual

S_N 2 reaction readily occurs in

Options

  1. ACH ₃ CH ₂- O - CH ₃
  2. BCH ₂= CH - CH ₂- O - CH ₃
  3. CPh - CH ₂- O - CH ₂- CH ₃

Correct answer

A. CH ₃ CH ₂- O - CH ₃

Step-by-step solution

S_N 2 reactions occur more readily at carbons that are less substituted. It is easier for the nucleophile to attack if there is little substitution around the C-leaving group bond. Therefore, the order of reactivity for alkyl halides is methyl > primary > secondary >>> tertiary.

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