Chemistry - Carbonyl compounds Question with Solution | TestHub
How many of the following pairs can be distinguished by ammoniacal silver nitrate solution?
(a) Acetic acid and acetaldehyde
(b) Phenol and benzaldehyde
(c) Propyne and propene
(d) Methanol and ethanol
(e) Formaldehyde and benzaldehyde
(f) Benzaldehyde and acetone
(g) Glucose and fructose
(h) C₆H₅NH₂ (aniline) and C₆H₅NHOH

Answer:
Solution:
(a) Acetaldehyde gives silver mirror but Acetic acid does not give silver mirror with ammonical silver nitrate solution
(b) benzaldehyde gives silver mirror but Phenol does not give silver mirror with ammonical silver nitrate solution
(c) Propyne(terminal) gives white ppt and propene does not gives white ppt with ammonical silver nitrate solution
(e) Formaldehyde and benzaldehyde both give silver mirror with ammonical silver nitrate solution.
(f) Benzaldehyde gives silver mirror but acetone does not give silver mirror with ammonical silver nitrate solution
(g) Glucose and fructose both give silver mirror with ammonical silver nitrate solution
(h) gives silver mirror but does not give silver mirror with ammonical silver nitrate solution