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MHT CET Medical202625 April 2026Morning ShiftChemistryAlcohols Phenols and EthersActual

Identify the product formed when ethyl alcohol reacts with H ₂ SO ₄ at 443 K.

Options

  1. AEthoxy ethane
  2. BEthene
  3. CDimethyl ether
  4. DEthyl hydrogen sulphate

Correct answer

B. Ethene

Step-by-step solution

When ethyl alcohol is heated with concentrated H ₂ SO ₄ at 443 K , it undergoes intramolecular dehydration to form ethene. CH ₃ CH ₂ OH [443 K ] conc. H ₂ SO ₄ CH ₂= CH ₂ + H ₂ O At a lower temperature of 413 K , intermolecular dehydration occurs to yield ethoxyethane (diethyl ether). Thus, the product formed at 443 K is ethene. Answer: Ethene

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