JEE Main2026Apr 4, Shift 2Chemistry
Q.
Match the LIST-I with LIST-II
| List-I (Reaction) | List-II (Mechanism) | ||
|---|---|---|---|
| A. | Williamson Synthesis | I. | Electrophilic addition |
| B. | Friedel Craft Reaction | II. | Free radical substitution |
| C. | Bromination of vinyl benzene | III. | Nucleophilic substitution |
| D. | Chlorination of toluene in light | IV. | Electrophilic substitution |
Choose the correct answer from the options given below:
- A
A-III, B-I, C-II, D-IV
- B
A-III, B-IV, C-II, D-I
- C
A-III, B-IV, C-I, D-II
- D
A-I, B-III, C-IV, D-II
Solution
A. Williamson synthesis: alkoxide attacks an alkyl halide S2, nucleophilic substitution III.
B. Friedel-Crafts (alkylation/acylation on arenes): electrophile attacks the aromatic ring IV.
C. Bromination of vinyl benzene: Br adds across the C=C alkene side-chain I (electrophilic addition).
D. Photochlorination of toluene: generates Cl radicals that attack the benzylic C–H II (free radical substitution).
A-III, B-IV, C-I, D-II.
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