​Which of the following is the correct name of a carbon compound with three-carbon chains and a ketone group?​

Correct option is B

The correct answer is (B) Propanone.

The correct name of a carbon compound with three-carbon chains and a ketone group is propanone (CH₃COCH₃).

Explanation:

• The suffix "-one" in the name of a compound indicates that it has a ketone functional group. 
• The name of a compound with three carbon atoms is "prop". 
• The functional group in a compound is indicated by a prefix or suffix in its name. 

Additional Information:

• Propanal (CH₃CH₂CHO) is a colorless, flammable, organic compound with a fruity odor. It is also known as propionaldehyde.
• Propanol is a colorless, flammable, and volatile alcohol with the chemical formula (C₃H₇OH). It is used as a solvent, antiseptic, and disinfectant.
• Propene (CH₃CH=CH₂) is a colorless, unsaturated gas with a faint petroleum smell. It is the second simplest alkene, a type of hydrocarbon.