Difficulty: Medium
Average Score: 70%
Entry Exam
The products of a reaction are CO2 and H2O. Which type of reaction is this most likely to be?
Correct answer
D
Rationale
The reaction products CO2 and H2O indicate the formation of carbon dioxide and water, which are typical products of a combustion reaction. Combustion reactions involve the rapid combination of a substance with oxygen, producing heat and light energy. In this case, the presence of CO2 and H2O suggests a combustion reaction where a hydrocarbon or organic compound has reacted with oxygen to form these products. Therefore, the correct answer is 'Combustion' (choice D) as it aligns with the formation of CO2 and H2O in this reaction scenario.