Question

Differentiate Between:- Aromatic Compounds and Aliphatic Compounds​

Answer 1

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Parameter Aromatic compounds Aliphatic compounds

Flame test A sooty flame is produced when burnt A sooty flame is not produced when burnt

Odour Pleasant odour Unpleasant odour

Example Benzene and naphthalene Butane and propane

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Answer 2

Answer:

AROMATIC COMPOUNDS

• In aromatic compounds, the carbon compounds are linked to each other in a ring structure manner with conjugated pi electrons.
• These compounds follow Huckel’s rule.
• These compounds burn with a sooty flame.
• Aromatic compounds require special conditions to react.
• Aromatic compounds, the benzene ring is conjugated due to the presence of alternating double bonds.
• Aromatic compounds are always cyclic as they contain the benzene ring as part of its structure.
• Aromatic compounds are always unsaturated. .
• Carbon to hydrogen ratio is less in aromatic compounds. .
• Aromatic compounds produce a sweet pleasant odor.

ALIPHATIC COMPOUNDS

• In aliphatic compounds the carbon compounds are linked to each other in a straight chain manner.
• These compounds do not follow Huckel’s rule.
• These compounds burn with a non sooty flame.
• Aliphatic compounds react more freely and easily.
• The majority of aliphatic compounds are not conjugated.
• Aliphatic compounds can be linear as well as cyclic.
• Aliphatic compounds can be saturated as well as unsaturated.
• Carbon to hydrogen ratio is more in aliphatic compounds
• Aliphatic compounds are usually odorless or sometimes there can a slight odor.