Question

Which of the following statements is NOT true about combustion reactions?

Select one:
a. The products are always carbon dioxide and methane.
b. The reactions involve burning of hydrocarbons.
c. Combustion reactions have oxygen and a hydrocarbon as reactants.
d. There are two types of combustion reactions: complete and incomplete.

Answer 1

Answer:

The answer is option C..

Answer 2

Statement that doesn't portray a combustion reactions in this question is

C: Combustion reactions have oxygen and a hydrocarbon as reactants.

• Combustion can  e regarded as a high-temperature exothermic redox chemical reaction which usually takes place in the presence of fuel and an oxidant,.

• This oxidant is usually oxygen and after oxidation, gaseous products is formed in mixture termed as smoke which are carbon dioxide and methane.

Example of this are;

1. production of energy in thermal power plants.
2. Burning of Wood or Coal
3. Combustion of Natural Gas

Therefore, option C is correct.

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