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NEETChemistryHaloalkanes and Haloarenes

Among the following, the compounds which can undergo an S N 1 reaction in an aqueous solution, are

Options

  1. AI and IV only
  2. BII and IV only
  3. CII and III only
  4. DII , III and IV only

Correct answer

C. II and III only

Step-by-step solution

S N 1 reaction involves carbocation, and therefore only those alkyl halides which can give stable carbocations undergo S N 1 reaction. I. Unstable Vinylic carbocations are unstable. II. Stable tert-butyl carbocation has great stability due to hyper conjugation. III. Stable Resonance and + R effect. IV. Unstable Bridge-head carbocations are very unstable.

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