Explain the following reactions of ethanol :
(a)
Raction with sodium
(b)
Reaction with conc. sulphuric acid.
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Explanation:
If a small piece of sodium is dropped into some ethanol, it reacts steadily to give off bubbles of hydrogen gas and leaves a colourless solution of sodium ethoxide, CH3CH2ONa. Sodium ethoxide is known as an alkoxide. If the solution is evaporated carefully to dryness, the sodium ethoxide is left as a white solid.
B)
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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