List two tests for experimentally distinguishing between an alcohol and a carboxylic acid and describe how these tests are performed.

test 1 (Litmus Test): Take two strips of blue litmus paper. place a drop each of the alcohol and carboxylic acid on these strips separately. The blue litmus paper turns red in the case of carboxylic acid and remains unaffected in the case of alcohol.
Test 2 (Sodium Hydrogen Carbonate Test/Sodium Carbonate Test): A pinch of sodium hydrogen carbonate or sodium carbonate is added separately in both. If brick effervescence with the evolution of a colorless gas is observed, it indicates the presence of carboxylic acid. If no change is observed, it confirms the presence of alcohol.
Test 3 (Ester Test) or any other suitable test.