SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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hydrocarbon + oxygen
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hydrocarbon + oxygen
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Either A or B
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None of the above
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Detailed explanation-1: -There is no unique equation for incomplete combustion, but one possibility would be CH4+O2⟶C+2H2O.
Detailed explanation-2: -If we produce carbon or carbon monoxide as part of a combustion reaction, we know the reaction is incomplete. We know this because carbon or carbon monoxide can still react with oxygen to produce carbon dioxide. Carbon dioxide will not react with oxygen any further. Therefore, the combustion reaction is complete.
Detailed explanation-3: -Incomplete combustion of a hydrocarbon fuel occurs when there is a poor supply of oxygen. Less energy is released. Water is still produced from the hydrogen atoms. Instead of carbon dioxide, you might get carbon monoxide or particulate carbon, known commonly as soot, or a mixture of both.
Detailed explanation-4: -The general chemical formula for a combustion reaction of hydrocarbon compound with x carbon atoms and y hydrogen atoms is: CxHy+(x+y4)O2→xCO2+y2H2O C x H y + ( x + y 4 ) O 2 → x C O 2 + y 2 H 2 O Notice all carbons in carbon dioxide comes from the reactant hydrocarbon.