Which of the following statements is not true of the combustion of an organic compound?
a. oxygen gas (o2) must be one of the reactants
b. energy is released by the reaction
c. it can also be described as a synthesis reaction
d. carbon dioxide (co2) will be produced

The following statements are not true of the combustion of an organic compound is

C. it can also be described as a synthesis reaction

Organic compounds have a characteristic that there is a chain of carbon atoms, while in inorganic does not have a chain of carbon atoms

The reaction of a substance with oxygen is called a combustion reaction

Perfect combustion of carbon compounds will get CO2 gas, whereas if it is not perfect it will produce CO gas

Identification of carbon compounds can usually be done by flowing it into lime water which produces turbid water because of the reaction of CO2 with Ca(OH)₂ to form CaCO₃

Burning organic samples will convert C atoms to CO₂ and H to H₂O

We see the answer choices

1. Oxygen is included in the reactants in the combustion process

So the  answer is correct

2. Energy is released during combustion because the reaction is exothermic or releases heat with a negative enthalpy of combustion

So the  answer is correct

3. A decomposition reaction is the decomposition reaction of a compound into its constituent elements. In combustion reactions, occur decomposition, not a formation reaction

So the  answer is wrong

4. CO₂ is the result of combustion,

So the  answer is correct

properties of hydrocarbons link

Grade: Senior High School

Subject: Chemistry

Chapter: Hydrocarbons

Keywords: combustion, organic, inorganic, a carbon chain

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explanation:

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