JEE Main · 2025 · Shift-IIeasyGOC-099

Match the LIST-I with LIST-II | LIST-I | LIST-II | |---|---| | A. Carbocation | I. Species that can supply a pair of…

General Organic Chemistry (GOC) · Class 11 · JEE Main Previous Year Question

Question

Match the LIST-I with LIST-II

| LIST-I | LIST-II | |---|---| | A. Carbocation | I. Species that can supply a pair of electrons. | | B. Free radical | II. Species that can receive a pair of electrons. | | C. Nucleophile | III. sp2sp^2 hybridized carbon with empty p-orbital. | | D. Electrophile | IV. sp2/sp3sp^2/sp^3 hybridized carbon with one unpaired electron. |

Choose the correct answer from the options given below:

Options
  1. a

    A-IV, B-II, C-III, D-I

  2. b

    A-II, B-III, C-I, D-IV

  3. c

    A-III, B-IV, C-II, D-I

  4. d

    A-III, B-IV, C-I, D-II

Correct Answerd

A-III, B-IV, C-I, D-II

Detailed Solution

Step 1: Identify each species

(A) Carbocation: Carbon bearing a positive charge, only 3 bonds, sp2sp^2 hybridised with an empty p-orbital. → III

(B) C-Free radical: Carbon with one unpaired electron; can be sp2sp^2 or sp3sp^3 hybridised. → IV

(C) Nucleophile: Electron-rich species that donates a pair of electrons. → I

(D) Electrophile: Electron-deficient species that accepts a pair of electrons. → II

Step 2: Final match

A-III, B-IV, C-I, D-II → Option (d)

Key Points to Remember:

  • Carbocation: sp2sp^2, empty p-orbital, acts as electrophile
  • Free radical: unpaired electron, neither nucleophile nor electrophile
  • Nucleophile = electron donor; Electrophile = electron acceptor

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