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Chemistry · PYQ NEET UG 2018

हिन्दी

Which of the following carbocations is expected to be most stable?

  1. Structure (1) with para-\( \mathrm{NO}_2 \)
  2. Structure (2) with meta-\( \mathrm{NO}_2 \)
  3. Structure (3) with ortho-\( \mathrm{NO}_2 \)
  4. Structure (4) with benzyl carbon

Correct answer · Option 4

Structure (4) with benzyl carbon

Explanation

Benzyl carbocations with electron-donating groups or unsubstituted benzyl groups are more stable than those with strongly electron-withdrawing nitro groups (-I, -R effects destabilize carbocation).
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