what happwns when ethanol is heated at 170 degree Celcius with excess of concentrated sulphuric acid?
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Explanation:
When ethanol is heated with an excess of concentrated sulphuric acid at a temperature of 170°C, it produces ethene as final product. The concentrated acid acts only as a dehydrating agent and it is recovered unchanged.
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Ethanol is heated with an excess of concentrated sulphuric acid at a temperature of 170°C. The gases produced are passed through sodium hydroxide solution to remove the carbon dioxide and sulphur dioxide produced from side reactions. The ethene is collected over water.
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