has a higher molar mass
has a higher degree of unsaturation
undergoes substitution and addition reactions
is a liquid at room temperature
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But aromatic compounds burn with a more sooty flame than alkenes so the and should be B. It's even a way for differenciatine alkene from benzene
The ans is A
Both ethene and benzene have double bond so their have the same degree of unsaturation but their molar mass differ with Benzene(C6H6) having higher molar mass(78g/mol) while ethene(C2H4) is just (28g/mol)
NB: organic compounds with high moecular mass burns with sooty flame compare to ones with lesser mass
yes the answer is b because ethyne burn with a sooty flame more than ethene because of the degree of unsaturation that makes it have more carbon content than ethene
If benezene had a higher unsaturation that Ethen then it should decolorize bromine water more than Ethene but it doesnt....showing a smiliar characteristics with the alkanes family. Now, the production of sooty fames is based on the number of carbon atoms available. The higher it is, the more sooty flames it produces. compare Ethene carbon atoms to benezene....benzen has 6 while Ethene has only 2. that's why on burning, because of it's high carbon content, it gives off more sooty flame than Ethen. indirectly, it has do to do with molecular mass. hence it is A
The correct answer is B. has a higher degree of unsaturation.
Benzene (C6H6) is a highly unsaturated compound, meaning it has a high number of double bonds (three) compared to its molecular size. This leads to incomplete combustion, resulting in more soot production.
Ethene (C2H4), on the other hand, has only one double bond and is more likely to undergo complete combustion, producing less soot.
The degree of unsaturation affects the combustion process:
- Higher unsaturation leads to more soot formation (benzene)
- Lower unsaturation leads to less soot formation (ethene)
The other options are not directly related to soot production:
A. Molar mass: While benzene has a higher molar mass, this isn't the primary reason for more soot production.
C. Substitution and addition reactions: These reactions are not directly related to combustion or soot formation.
D. State of matter: Benzene being a liquid at room temperature doesn't directly impact soot production during combustion.
So, the higher degree of unsaturation in benzene leads to more soot production compared to ethene.
