MHT CET202520 Apr 2025Morning ShiftChemistryHaloalkanes and HaloarenesActual
Identify the product ' Z ' in the following series of reactions. Ethanol [ ] SOCl ₂ X [ Dry ether ] Mg Y NH ₃ Z
Options
- AEthyl chloride
- BEthyl magnesium chloride
- CEthyl amine
- DEthane
Correct answer
D. Ethane
Step-by-step solution
The reaction sequence begins with ethanol treated with thionyl chloride under heat, producing ethyl chloride: CH₃CH₂ OH + SOCl₂ [ ] CH₃CH₂Cl + SO₂ + HCl , hence X is ethyl chloride ( CH₃CH₂Cl ). In dry ether, ethyl chloride reacts with magnesium to form the Grignard reagent ethyl magnesium chloride: CH₃CH₂Cl + Mg [ Dry ether ] CH₃CH₂MgCl , so Y is CH₃CH₂MgCl . Ethyl magnesium chloride, being a strong base, reacts with ammonia via proton abstraction to yield ethane: CH₃CH₂MgCl + NH₃ CH₃CH₃ + MgClNH₂ , thus Z is etha