COMEDK2024Evening ShiftChemistryHaloalkanes and HaloarenesActual
Match the names of reactions given in Column I with the appropriate reactions given in Column II. No. Name of reaction No. Equations representing reactions A Sandmeyer P 2C₆H₅Cl + Na (dry ether) Diphenyl B Fittig Q CH₃ - CHBr - CH₃ + AgF CH₃ - CHF - CH₃ + AgBr C Swarts R CH₃ - CH₂ - Br + NaI (Acetone) CH₃ - CH₂ - I + NaBr D Finkelstein S C₆H₅N₂^+ Cl^- + Cu₂Br₂/HBr C₆H₅Br + N₂
Options
- AA = Q B = R C = S D = P
- BA = S B = P C = Q D = R
- CA = S B = R C = Q D = P
- DA = R B = P C = S D = Q
Correct answer
B. A = S B = P C = Q D = R
Step-by-step solution
Sandmeyer reaction involves the conversion of diazonium salts to aryl halides using copper(I) salts. This corresponds to reaction (S): C ₆ H ₅ ~N ₂⁺ Cl ⁻ + Cu ₂ Br ₂ / HBr C ₆ H ₅ Br + N ₂ . Fittig reaction involves the coupling of two aryl halides in the presence of sodium metal in dry ether to form diphenyl. This corresponds to reaction (P): 2 C ₆ H ₅ Cl + Na (dry ether) Diphenyl . Swarts reaction is used for the synthesis of alkyl fluorides from alkyl halides using metallic fluorides like AgF . This corresponds