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How would you distinguish experimentally between an alcohol and a carboxylic acid?


Posted- 2361 days ago
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Carboxylic acid reacts with sodium bicarbonate/carbonate to give out CO2 Gas whereas alcohol does not.

Also, carboxylic acid turns litmus blue to red as it is acidic whereas alcohol is neutral

 

we will ad sodium bicarbonete in these twoo

alcohol will not react with it while carboxylic acid will give brick effervesence.

 

ethanol has no reaction with sodiumhydrogencarbonate but ethanoic acid gives briskn effervescence with sodiumhydrogencarbonate

 

add sodium bicarbonate to both .carboxylic acids will release CO2 whereas alcohol does not

carboxylic acids turns blue litmus red amnd alcohol does not

 

Perform Sodium Bicarbonate test

CH3COOH + NaHCO3 ---------- CH3COONa + CO2 + H2O

 

use decarboxylation rxn on carboxylic acid and get effervesn co2.

use lucas test alcohol will react no actn on cooh

 

Carboxylic acid reacts with sodium bicarbonate/carbonate to give out CO2 Gas whereas alcohol does not.

Also, carboxylic acid turns litmus blue to red as it is acidic whereas alcohol is neutral