Question

How to come to know whether a given liquod is etjanol or ethanoic acid?

Answer 1

Hey,

The information provided by HRS  is very clear and concise.

I would like to add another point (or two):

You can also test the 2 of them chemically by using other chemicals:

2,4 Dinitrophenylhydrazine - will give an orange/red/yellow precipitate with aldehydes, no reaction with ethanoic acid.You can also use the Silver Mirror test also known as Tollen's Reagent test. - Gives a silver mirror with aldehydes, no reaction with ethanoic acid.

Hope this helps!