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AP EAMCET · Chemistry · Haloalkanes and Haloarenes

Arrange the following in correct order towards \(\mathrm{S}_{\mathrm{N}} 2\) reaction.

  1. A III \(>\) I \(>\) IV \(>\) II
  2. B III \(>\) IV \(>\) I \(>\) II
  3. C I \(>\) II \(>\) III \(>\) IV
  4. D I \(>\) III \(>\) II \(>\) IV
Verified Solution

Answer & Solution

Correct Answer

(A) III \(>\) I \(>\) IV \(>\) II

Step-by-step Solution

Detailed explanation

(a) \(\mathrm{S}_{\mathrm{N}} 2\) reactivity depends on steric crowding at the \(\alpha\) - carbon and the \(\mathrm{C}-\mathrm{X}\) bond strength. Steric crowding \(\uparrow, \mathrm{S}_{\mathrm{N}} 2\) reactivity \(\downarrow\) C-X bond strength…