SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hexene
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Hexane
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Either A or B
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None of the above
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Detailed explanation-1: -Hexane is a aliphatic hydrocarbon, thus it burns with non-sooty flame. Was this answer helpful?
Detailed explanation-2: -Both hexane and hexene burnt in the air with yellowish flame with hexene producing more soot compare to hexane. This is because the percentage of carbon by mass of hexane is higher than the percentage of carbon by mass of hexene. The combustion flame of alkenes produces more soot than the alkane.
Detailed explanation-3: -Highly unsaturated Aromatic compounds like benzene produce sooty flame.
Detailed explanation-4: -Ethylene, for example, burning in air yields plenty of soot and a bright yellow flame, whereas the same fuel diluted with nitrogen to suppress the formation of soot gives a much dimmer blue flame.