Answer to Question #69120 in General Chemistry for Thien Duc

Question

I just finished a nitration of acetanilide and aniline in my lab. But How do I identify the product that is p-nitroacetanilide (colour of product, reaction to recognize). And How do I identify the product that is p-nitroaniline (colour of product, reaction to recognize).
Source of your information.

Answer 1

nitroacetanilide - yellow
nitroaniline - yellow
you can synt iodoform from acetanilide
https://www.chemguide.co.uk/organicprops/carbonyls/iodoform.html
can see a pale yellow, crystalline, volatile substance, it has a penetrating and distinctive odor
(in older chemistry texts, the smell is sometimes referred to as the smell of hospitals)
Nitroaniline interacts with HCL. You can get slightly yellowish water-soluble crystals.