(a) In a tabular form, differentiate between ethanol and ethanoic acid under the following heads:
- Physical state
- Taste
- NaHCO3 test
- Ester test
(b) Write a chemical reaction to show the dehydration of ethanol.
(a)
| (i) Physical state | Ethanol is a colourless liquid with pleasant odour. | Ethanoic acid is colourless, pungent smelling liquid. |
|---|---|---|
| (ii) Taste | Ethanol is bitter to taste. | Ethanoic acid is sour to taste. |
| (iii) NaHCO3 test | Ethanol does not react with sodium bicarbonate. | When ethanoic acid reacts with sodium NaHCO, with the evolution of carbon dioxide gas. |
| (iv) Ester test | Ethanol on reaction with ethanoic acid in the presence of acid forms ester. | Ethanoic acid on reaction with ethanol in the presenc. |
(b) Ethanol undergoes dehydration to form ethane.