How can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical properties?

AcademicChemistryNCERTClass 10

 The difference on the basis of physical properties between Ethanol and Ethanoic acid is given below:
Property
Ethanol
Ethanoic acid
(i) State
Liquid
Liquid
(ii) Odour
Sweet smell
Pungent vinegar-like smell
(iii) Melting point
156 K
290 K
(iv) Boiling point
351 K
391 K

The difference on the basis of chemical properties between Ethanol and Ethanoic acid is given below:

Test
Ethanol
Ethanoic acid
(i) Litmus test
No change in the colour of litmus solution.
Blue litmus solution turns red.
(ii) Sodium hydrogen carbonate test
C2H5OH + NaHCO3 → No reaction No brisk effervescence.
CH3COOH + NaHCO3 → CH3COONa + H2O + CO2 Brisk effervescence due to evolution of CO2.
(iii) Alkaline potassium permanganate
On heating, the pink colour disappears.
Does not happen so.
raja
Updated on 10-Oct-2022 12:47:19

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