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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

  1. AEthyl chloride
  2. BEthyl magnesium chloride
  3. CEthyl amine
  4. 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

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