(a) In tabular form, differentiate between ethanol and ethanoic acid under the following heads:
(i) Physical state (ii) Taste
(iii) NaHCO3 test (iv) Ester test
(b) Write a chemical reaction to show the dehydration of ethanol.
(a) (i) Properties: Physical state
Ethanol: It is liquid with specific smell.
Ethanoic acid: It is also liquid with vinegar like smell.
(ii) Properties: Taste
Ethanol: It has burning taste.
Ethanoic acid: It has sour taste.
(iii) Properties: NaHCO3 test
Ethanol: It does not react.
Ethanoic acid: It gives brisk effervescence due to CO2.
(iv) Properties: Ester test
Ethanol: Add acetic acid and conc. H2SO4, Pleasant fruity smelling compound, ester is formed.
Ethanoic acid: Add ethyl alcohol and conc. H2SO4, pleasant fruity smelling compound, ester is formed.
(b) CH3CH2OH + conc. H2SO4 + 443K → CH2 = CH2 + H2O