When ethanol Is taken in excess and temperature is kept 1.40C. On dehydration with conc MO, it gives a molecule of:
Correct answer: A. Ethene
- A. Ethene
- B. Ether
- C. Ethyl hydrogen sulphat
- D. None of the above
Explanation
When ethanol is dehydrated with concentrated sulfuric acid (conc MO) at a temperature of 140°C, it undergoes a chemical reaction called dehydration. In this reaction, ethanol loses a molecule of water (H2O) to form ethene (C2H4). Ethene is an unsaturated hydrocarbon commonly known as ethylene. It is used in various industrial processes, including the production of plastics and as a ripening agent for fruits.
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About Alcohols
Alcohols contain a hydroxyl group attached to a saturated carbon atom and are classified as primary, secondary or tertiary. Their nomenclature, hydrogen bonding, acidity, oxidation, dehydration, reaction with sodium and conversion to haloalkanes are covered, along with the distinction between alcohols and phenols, where the hydroxyl group is attached directly to an aromatic ring.
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