How would you distinguish experimentally...

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

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By `NaHCO_(3)` test. Carboxylic acids reacts with `NaHCO_(3)` to evolve `CO_(2)` gas while alcohols do not.
`RCOOH+NaHCO_(2) to RCOONa+CO_(2)+H_(2)O:ROH+NaHCO_(3)to`No reaction

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