Final answer:
Single-bonded carbon compounds, or alkanes, produce the least amount of soot in flames due to their saturated nature and complete combustion compared to double-bonded alkenes, triple-bonded alkynes, and aromatic compounds.
Step-by-step explanation:
The carbon compound bonds that would produce the least amount of soot in flames are single bonds. This is because alkanes, which only have carbon-to-carbon single bonds, generally combust more completely compared to alkenes and alkynes, which contain double and triple bonds respectively, and to aromatic compounds, which have multiple resonance structures and tend to produce more soot during incomplete combustion due to their structure and stability.
Single-bonded carbon compounds, or alkanes, are usually the most saturated, meaning they contain the maximum number of hydrogen atoms, facilitating a more complete combustion process when exposed to sufficient oxygen.
Double bonds, found in alkenes, and triple bonds, found in alkynes, introduce unsaturation, which can lead to a higher tendency to produce soot. Aromatic compounds, like benzene, which contain alternating single and double bonds, are known to be quite stable and often undergo incomplete combustion, resulting in soot formation.