JEE Main202330 Jan 2023Morning ShiftChemistryHaloalkanes and HaloarenesActual
Match List I with List II List I List II A I Fittig reaction B II Wurtz Fittig reaction C III Finkelstein reaction D C 2 H 5 Cl + NaI → C 2 H 5 I + Nacl IV Sandmeyer reaction
Options
- AA–II, B–I, C–III, D–IV
- BA–III, B–II, C–IV, D–I
- CA–IV, B–II, C–III, D–I
- DA–II, B–I, C–IV, D–III
Correct answer
D. A–II, B–I, C–IV, D–III
Step-by-step solution
(i) Fittig reaction: Aryl halides give analogous compounds when treated with sodium in dry ether, in which two aryl groups are joined together. It is called Fittig reaction. (ii) Wurtz-Fittig reaction: A mixture of an alkyl halide and aryl halide gives an alkylarene when treated with sodium in dry ether and is called Wurtz-Fittig reaction. (iii) Finkelstein reaction: Alkyl iodides are often prepared by the reaction of alkyl chlorides/ bromides with NaI in dry acetone. This reaction is known as Finkelstein reaction.