COMEDK202510 May 2025Evening ShiftChemistryHaloalkanes and HaloarenesActual
Match the reactions in Column I with the correct products given in Column II: array |l|l|l|l| S.N. & Column I & S.No. & Column II A & 1- Chloropropane + ( Zn / HCl ) & P & Propanone + Methanal B & n- Hexane + (anh. . AlCl ₃ / HCl _ ( g ) ) & Q & Propanone C & 2- Methylpropene + ( . O ₃ ~ &~ Zn / H ₂ O ) & R & Propane D & Propyne + ( HgSO ₄ / H ₂ SO ₄ . at 333 K) & S & 2-Methylpentane + 3-Methylpentane array
Options
- AA - S B - R C - Q D - P
- BA - Q B - P C - S D - R
- CA - R B - S C - P D - Q
- DA-P B-S C-R D-Q
Correct answer
C. A - R B - S C - P D - Q
Step-by-step solution
Reaction A: 1 -Chloropropane ( CH₃CH₂CH₂Cl ) undergoes reduction with Zn/HCl to form propane ( CH₃CH₂CH₃ ). Thus, A matches with R. Reaction B: n -Hexane in the presence of anhydrous AlCl₃ and HCl undergoes isomerization to form branched alkanes, specifically 2 -methylpentane and 3 -methylpentane. Thus, B matches with S. Reaction C: 2 -Methylpropene ( (CH₃)₂C=CH₂ ) undergoes ozonolysis ( O₃ followed by Zn/H₂O ) to yield propanone ( CH₃COCH₃ ) and methanal ( HCHO ). Thus, C matches with P. Reaction D: Propyne ( CH₃C