To identify the functional group in the given organic compound

Aim : To identify the functional group in the given organic compound.

Material Required : Test tube, test tube stand, test tube holder, dropper, litmus (blue), NaHCO3, conc. H2SO4 , NH4OH, FeCl3

Physical Properties:

State: Solid 

Color: White 

Odor: phenolic

Water solubility: insoluble

Flammability: Burn with non-sooty flame (Aliphatic) 

Preliminary test :

S.N.	Experiment	Observation	Inference
1.	Litmus test: Organic compound + 2 drops of litmus solution.	Litmus solution turns from blue to red.	-COOH or phenolic (–OH) may be present
2.	Organic compound + NaHCO3 solution.	No effervescence.	-COOH group absent Phenolic (–OH) may be present.

Confirmatory test :

S.N.	Experiment	Observation	Inference
1.	FeCl3 Test: Organic compound + dil. FeCl3 solution	Green blue or violet coloration	Phenolic group is confirmed
2.	Phthalic test: Organic compound + phthalic acid + 2-3 drops H2SO4 + D then cool and add dil. NaOH	blue or red coloration	Phenolic group is confirmed

 

Result: The given organic comp. contains phenolic group.