What is the product when propan-1-ol reacts with excess conc. H₂SO₄ at 140°C?
At 140°C, propan-1-ol undergoes intermolecular dehydration in the presence of conc. H₂SO₄ to form di-n-propyl ether (CH₃CH₂CH₂-O-CH₂CH₂CH₃). Alkene formation occurs at higher temperature (~170°C).
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Alcohols - Dehydration Oxidation Esterification