Question

An organic compound $A$ burns with a sooty flame. It is negative towards Tollen's reagent test and positive for Borsche's reagent test. The compound $A$ is :

• A. benzaldehyde
• B. acetophenone
• C. acetone
• D. salicylic acid

Answer 1

Answer: (B)

acetophenone

An organic compound $A$ burns with a sooty flame. Hence, it is an aromatic compound.
It is negative towards Tollen's reagent test. Hence, aldehyde group is absent.
It is positive for Borsche's reagent test.
Hence, it is a ketone.
The compound $A$ is acetophenone, an aromatic ketone.