Question

Distinguish between the following:

(a) Phenol and benzoic acid 

(b) Anilineandethyl amine 

(c) Aniline and nitrobenzene 

(d) Benzaldehyde and acetophenone

Answer 1

(a) Phenol :

• It gives violet colour with neutral FeCl₃ test 
• It doesn't give effervescences of CO₂ 

Benzoic acid : It doesn't give violet colour with neutral FeCl₃ Effervescence of CO₂ evolve when NaHCO₃ is added 

(b) Aniline : It gives azo-dye test(orange dye) 

Ethylamine : It doesn't give azo-dye 

(c) Aniline : It gives azo-dye test. 

Nitrobenzene : It doesn't give azo dye test.

(d) Benzaldehyde :

• It gives Tollen's test 
• It doesn't give iodoform test 

Acetophenone : 

• It doesn't give Tollen’s test 
• It gives iodoform test